SRAM RockShox RS-1 Service Manual

GEN.0000000005735 Rev A

© 2018 SRAM, LLC

2015-2019
RS-1™

service
manual

SRAM® LLC WARRANTY

EXTENT OF LIMITED WARRANTY

Except as otherwise set forth herein, SRAM warrants its products to be free from defects in materials or workmanship for a period of two years
after original purchase. This warranty only applies to the original owner and is not transferable. Claims under this warranty must be made through
the retailer where the bicycle or the SRAM component was purchased. Original proof of purchase is required. Except as described herein, SRAM
makes no other warranties, guaranties, or representations of any type (express or implied), and all warranties (including any implied warranties
of reasonable care, merchantibility, or fitness for a particular purpose) are hereby disclaimed.

LOCAL LAW

This warranty statement gives the customer specific legal rights. The customer may also have other rights which vary from state to state (USA), from
province to province (Canada), and from country to country elsewhere in the world.

To the extent that this warranty statement is inconsistent with the local law, this warranty shall be deemed modified to be consistent with such law,
under such local law, certain disclaimers and limitations of this warranty statement may apply to the customer. For example, some states in the United
States of America, as well as some governments outside of the United States (including provinces in Canada) may:

Preclude the disclaimers and limitations of this warranty statement from limiting the statutory rights of the consumer
(e.g. United Kingdom).

Otherwise restrict the ability of a manufacturer to enforce such disclaimers or limitations.

For Australian customers:

This SRAM limited warranty is provided in Australia by SRAM LLC, 1000 W. Fulton Market, 4th Floor, Chicago, IL, 60607, USA. To make a warranty claim
please contact the retailer from whom you purchased this SRAM product. Alternatively, you may make a claim by contacting SRAM Australia, 6 Marco
Court, Rowville 3178, Australia. For valid claims SRAM will, at its option, either repair or replace your SRAM product. Any expenses incurred in making
the warranty claim are your responsibility. The benefits given by this warranty are additional to other rights and remedies that you may have under
laws relating to our products. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a
replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have
the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

LIMITATIONS OF LIABILITY

To the extent allowed by local law, except for the obligations specifically set forth in this warranty statement, in no event shall SRAM or its third party
suppliers be liable for direct, indirect, special, incidental, or consequential damages.

LIMITATIONS OF WARRANTY

This warranty does not apply to products that have been incorrectly installed and/or adjusted according to the respective SRAM user manual. The
SRAM user manuals can be found online at sram.com, rockshox.com, avidbike.com, truvativ.com, or zipp.com.

This warranty does not apply to damage to the product caused by a crash, impact, abuse of the product, non-compliance with manufacturers
specifications of usage or any other circumstances in which the product has been subjected to forces or loads beyond its design.

This warranty does not apply when the product has been modified, including, but not limited to any attempt to open or repair any electronic and
electronic related components, including the motor, controller, battery packs, wiring harnesses, switches, and chargers.

This warranty does not apply when the serial number or production code has been deliberately altered, defaced or removed.

This warranty does not apply to normal wear and tear. Wear and tear parts are subject to damage as a result of normal use, failure to service
according to SRAM recommendations and/or riding or installation in conditions or applications other than recommended.

Wear and tear parts are identified as:

Dust seals
Bushings
Air sealing o-rings
Glide rings
Rubber moving parts
Foam rings
Rear shock mounting hardware and
main seals
Upper tubes (stanchions)

Stripped threads/bolts (aluminium,
titanium, magnesium or steel)
Brake sleeves
Brake pads
Chains
Sprockets
Cassettes
Shifter and brake cables (inner and
outer)

Handlebar grips
Shifter grips
Jockey wheels
Disc brake rotors
Wheel braking surfaces
Bottomout pads
Bearings
Bearing races
Pawls

Transmission gears
Spokes
Free hubs
Aero bar pads
Corrosion
Tools
Motors
Batteries

Notwithstanding anything else set forth herein, the battery pack and charger warranty does not include damage from power surges, use of improper
charger, improper maintenance, or such other misuse.

This warranty shall not cover damages caused by the use of parts of dierent manufacturers.

This warranty shall not cover damages caused by the use of parts that are not compatible, suitable and/or authorised by SRAM for use with SRAM
components.

This warranty shall not cover damages resulting from commercial (rental) use.

SAFETY FIRST!

We care about YOU. Please, always wear your safety glasses

and protective gloves when servicing RockShox® products.

Protect yourself! Wear your safety gear!

TABLE OF CONTENTS

RS1™ RLC EXPLODED VIEW ................................................................................................................................................................................................................................. 5

RS1 RL REMOTE EXPLODED VIEW .................................................................................................................................................................................................................... 6

RS1 ACCELERATOR DAMPER™ EXPLODED VIEW..........................................................................................................................................................................................7

ROCKSHOX® SERVICE ...............................................................................................................................................................................................8

PART PREPARATION ...............................................................................................................................................................................................................................................8

SERVICE PROCEDURES ..........................................................................................................................................................................................................................................8

PARTS, TOOLS, AND SUPPLIES .......................................................................................................................................................................................................................... 9

RECOMMENDED SERVICE INTERVALS ...........................................................................................................................................................................................................10

RECORD YOUR SETTINGS ...................................................................................................................................................................................................................................10

TORQUE VALUES ....................................................................................................................................................................................................................................................10

FLUID VOLUME ........................................................................................................................................................................................................................................................10

AIR SPRING SERVICE ................................................................................................................................................................................................11

200 HOUR SERVICE

AIR SPRING REMOVAL ........................................................................................................................................................................................................................................... 11

TRAVEL CHANGE ADJUSTMENT  OPTIONAL ............................................................................................................................................................................................. 17

SOLO AIR™ BOTTOMLESS TOKEN™  OPTIONAL INSTALLATION ........................................................................................................................................................... 17

AIR SPRING INSTALLATION .................................................................................................................................................................................................................................18

CARBON FIBER UPPER SERVICE ......................................................................................................................................................................................................................20

CHARGER 2 DAMPER™ SERVICE .......................................................................................................................................................................... 23

200 HOUR SERVICE

CHARGER 2 DAMPER REMOVAL ...................................................................................................................................................................................................................... 23

BLEED PROCEDURE ..............................................................................................................................................................................................................................................28

CARBON FIBER UPPER SERVICE ...................................................................................................................................................................................................................... 33

CHARGER 2 DAMPER INSTALLATION ............................................................................................................................................................................................................35

CHARGER 2 DAMPER INSTALLATION  CROWN ADJUST ....................................................................................................................................................................... 37

CHARGER 2 DAMPER INSTALLATION  REMOTE ........................................................................................................................................................................................ 39

ACCELERATOR DAMPER SERVICE.......................................................................................................................................................................40

200 HOUR SERVICE

ACCELERATOR DAMPER REMOVAL ................................................................................................................................................................................................................40

ACCELERATOR DAMPER SERVICE ..................................................................................................................................................................................................................44

CARBON FIBER UPPER SERVICE ...................................................................................................................................................................................................................... 52

ACCELERATOR DAMPER INSTALLATION ......................................................................................................................................................................................................54

5RS-1™ RLC Exploded View

RS-1™ RLC Exploded View

Air spring access cover

Anchor bolt

Anchor

Jounce bottom out bumper

Retaining ring

Air shaft guide

Floating seal head

top out bumper

Wave spring

Support washer

Floating seal head

Top out bumper cone

Air piston

Stanchion

Dropout

Air shaft

Bottom cap

Air valve cap

Low- speed compression knob
and lockout adjuster knob

Lockout extension shaft

Brake hose guide

Bladder

Damper anchor

Cartridge tube

Bleed port

Damper seal head

Rebound piston

Rebound Shaft

Stanchion

Bottom cap

Bottom bolt

Rebound adjuster

Air Shaft Assembly

Compression Damper
Assembly

Rebound Damper
Assembly

Carbon fiber upper

Bottomless Token™

Knob base

6RS-1™ RL Remote Exploded View

RS-1™ RL Remote Exploded View

Air spring access cover

Anchor bolt

Anchor

Jounce bottom out bumper

Retaining ring

Air shaft guide

Floating seal head

top out bumper

Wave spring

Support washer

Floating seal head

Top out bumper cone

Air piston

Stanchion

Dropout

Air shaft

Bottom cap

Air valve cap

RL remote

Lockout extension shaft

Brake hose guide

Bladder

Cartridge tube

Bleed port

Damper seal head

Rebound piston

Rebound Shaft

Stanchion

Bottom cap

Bottom bolt

Rebound adjuster

Air Shaft Assembly

Compression Damper
Assembly

Rebound Damper
Assembly

Carbon fiber upper

Bottomless Token™

Knob base

Damper anchor

7RS-1™ Accelerator Damper™ Exploded View

RS-1™ Accelerator Damper™ Exploded View

Air spring access cover

Anchor bolt

Anchor

Jounce bottom out bumper

Retaining ring

Air shaft guide

Floating seal head

top out bumper

Wave spring

Support washer

Floating seal head

Top out bumper cone

Air piston

Stanchion

Dropout

Air shaft

Bottom cap

Air valve cap

Grommet

XLoc hose

Connectamajig™

Knurled collar

Damper anchor

Compression Damper

Cartridge tube

Dig Valve™

Damper seal head

Rebound Shaft

Stanchion

Dropout

Bottom bolt

Rebound adjuster

Air Shaft Assembly

Compression Damper
Assembly

Rebound Damper
Assembly

Carbon fiber upper

Bottomless Token™

8RockShox® Service

RockShox® Service

We recommend that you have your RockShox suspension serviced by a qualified bicycle mechanic. Servicing RockShox suspension requires knowledge of
suspension components, as well as the use of specialized tools and lubricants/fluids. Failure to follow the procedures outlined in this service manual may
cause damage to your component and void the warranty.

Visit www.sram.com/service for the latest RockShox Spare Parts catalog and technical information. For order information, please contact your local SRAM®
distributor or dealer.

Information contained in this publication is subject to change at any time without prior notice.

Your product's appearance may differ from the pictures contained in this publication.

For recycling and environmental compliance information, please visit www.sram.com/company/environment.

Part Preparation

Remove the component from the bicycle before service.

Disconnect and remove the remote cable or hydraulic hose from the fork or rear shock, if applicable. For additional information about RockShox remotes,
user manuals are available at www.sram.com/service.

Clean the exterior of the product with mild soap and water to avoid contamination of internal sealing part surfaces.

Service Procedures

The following procedures should be performed throughout service, unless otherwise specified.

Clean the part with isopropyl alcohol and a clean, lint-free rag. For hard to reach
places (e.g. upper tube, lower leg), wrap a clean, lint-free rag around a
non-metallic dowel to clean the inside.

Clean the sealing surface on the part and inspect it for scratches.

Replace the o-ring or seal with a new one from the service kit. Use your fingers or
a pick to pierce and remove the old seal or o-ring.

Apply grease to the new seal or o-ring.

NOTICE

Do not scratch any sealing surfaces when servicing the product. Scratches can
cause leaks. Consult the spare parts catalog to replace the damaged part.

Use aluminum soft jaws when placing a part in a bench vise.

Tighten the part with a torque wrench to the torque value listed in the red bar.
When using a crowfoot socket and torque wrench, install the crowfoot socket at
90 degrees to the torque wrench.

Specified torque value in N·m (in-lb)

9Parts, Tools, and Supplies

Parts, Tools, and Supplies

Parts

• AM SVC KIT 200h/1yr RS-1™ ACS/ACFS A3

• AM SVC KIT 200h/1yr RS-1 RLC/RL CHGR2 A1

• Optional travel change Solo Air™ spring assembly

Safety and Protection Supplies

• Apron

• Clean, lint-free rags

• Nitrile gloves

• Oil pan

• Safety glasses

RockShox® Tools

• Dust seal install tool flangeless (32 mm)

• RS-1 anchor tool

• Charger bleed syringe

• Standard syringe

Lubricants and Fluids

• Isopropyl alcohol

• RockShox 15wt suspension oil

• RockShox 5wt suspension oil (Accelerator Damper™)

• RockShox 3wt suspension oil (Charger 2 Damper™)

• Liquid-O-Ring® PM600 military grease or SRAM® Butter grease

Bicycle Tools

• Bicycle stand

• Downhill tire lever

• Shock pump

Common Tools

• 1.3, 2, 2.5, 5, 8 mm hex wrench

• 5 mm, long hex bit socket

• 2, 2.5, and 5 mm hex bit socket

• 9, 12, 15, and 22 mm crowfoot

• 6, 9, 12, 15, and 22 mm open end wrenches

• 24 and 30 mm sockets

• T10 TORX®

• Adjustable wrench

• Air compressor and nozzle

• Bench vise and aluminum soft jaws

• Flat blade screwdriver

• Internal retaining ring pliers- large

• Long plastic or wooden dowel

• Pick

• Plastic or rubber mallet

• Schrader valve tool

• Socket wrench

• Torque wrench

SAFETY INSTRUCTIONS

Always wear safety glasses and nitrile gloves when working with suspension oil and bicycle grease.

Place an oil pan on the floor underneath the area where you will be working on the fork.

10Recommended Service Intervals

Recommended Service Intervals

Regular service is required to keep your RockShox® product working at peak performance. Follow this maintenance schedule and install the service parts
included in each service kit that corresponds with the Service Hours Interval recommendation below. For spare part kit contents and details, refer to the
RockShox Spare Parts Catalog at www.sram.com/service.

Service Hours Interval Maintenance Benefit

Every ride Clean dirt from upper tubes and wiper seals.

Extends wiper seal lifespan

Minimizes damage to upper tubes

Minimizes lower leg contamination

Every 50 Hours Perform lower leg service

Restores small bump sensitivity

Reduces friction

Extends bushing lifespan

Every 200 Hours Perform damper and spring service

Extends suspension lifespan

Restores small bump sensitivity

Restores damping performance

Record Your Settings

Use the charts below to record your settings to return your fork to its pre-service settings. Record your service date to track service intervals.

Service Hours
Interval

Date of Service Air Pressure

Rebound setting - count the
number of clicks while turning the
rebound adjuster fully counter­clockwise.

Charger 2 Damper™ Only
Low-speed Compression setting - count
the number of clicks while turning the
compression adjuster fully counter­clockwise.

200

Torque Values

Part Tool Torque

Bottom bolt(s) 5 mm hex bit socket 6.8 N·m (60 in-lb)

Anchor bolt 5 mm, long hex bit socket 8 N·m (70 in-lb)

Anchors 30 mm socket, RS-1™ anchor tool

12.4 N·m (110 in-lb)

Bottom caps 24 mm socket 12.4 N·m (110 in-lb)

Fluid Volume

Damper Side

Spring Side

Damper

Technology

Upper Tube

Lower Leg

Spring

Technology

Upper Tube

Lower Leg

Fork Model

Volume

(mL)

OIl

Oil

Height

(mm)

Volume

(mL)

OIl Lubricant

Volume

(mL)

Oil

RS-1™

RL
RLC

Charger 2
Damper

Bleed 3wt

-

5

15wt Solo Air™ Grease

5 15wt

XLoc™

Accelerator
Damper™

100 5wt 71-77

11Air Spring Service

Air Spring Service

200 Hour Service

Air Spring Removal

NOTICE

Some of the fasteners in this fork are reverse threaded. To avoid damaging the
fork when removing or installing a fastener, carefully read the instructions and
follow directional arrows.

Only use SRAM® Butter grease or Liquid O-Ring® PM600 military grease when
servicing RS-1™ forks. No other grease is approved for use.

When replacing seals and o-rings, use your fingers or a pick to remove the seal or
o-ring. Spray isopropyl alcohol on each part and clean with a rag.

Apply grease to the new seal or o-ring.

Inspect each part for scratches. Do not scratch any sealing surfaces when
servicing your suspension. Scratches can cause leaks.

Remove the air spring access cover.

NOTICE

Do not pierce the air spring access cover.

Remove the air valve cap from the bottom cap. Depress the Schrader valve
and release all air pressure.

⚠ WARNING EYE HAZARD

Verify all pressure is removed from the fork before proceeding. Depress
the valve again to remove any remaining air pressure. Failure to do so can
result in injury and/or damage to the fork.

Loosen the anchor bolt 3 to 4 turns.

NOTICE

Only loosen the anchor bolt, do not remove it from the air shaft. If the bolt is
removed from the air shaft it can fall into the carbon fiber upper.

PM600 or SRAM Butter

1

2

5 mm, long hex bit socket

3

12Air Spring Removal

Remove the socket wrench and leave the hex bit socket engaged in the
bolt. Strike the end of the hex bit socket to dislodge the air shaft from the
carbon fiber upper.

Remove the hex bit socket from the carbon fiber upper.

Firmly pull the stanchion downward to remove the stanchion and spring
assembly from the carbon fiber upper.

If the stanchion does not slide out of the carbon fiber upper, then the press
fit of the shaft may still be engaged. Reinsert the 5 mm, long hex bit socket
and repeat the previous step.

Insert the anchor tool into the bottom of the carbon fiber upper so that it
engages the anchor.

Rotate the anchor tool clockwise and unthread the anchor.

Remove the anchor tool, the anchor, and the anchor bolt.

Mallet & 5mm, long hex bit socket

4

5

Anchor tool

6

7

30 mm & Anchor tool

Anchor tool

13Air Spring Removal

Remove the anchor bolt.

Apply grease and install a new o-ring.

Remove the anchor o-ring.

Apply grease and install a new o-ring.

Remove the jounce bottom out bumper from the air shaft.

Depress the Schrader valve in the air shaft and release the air pressure
from the negative air chamber.

8

9

10

Small hex

11

14Air Spring Removal

Push the air shaft into the spring assembly to prevent it from getting
scratched when removing the retaining ring.

Use a flat blade screwdriver to push the air shaft guide tab under the
retaining ring.

Place the tips of large internal retaining ring pliers into the eyelets of the
retaining ring. Press firmly on the pliers to push the air shaft guide into the
spring assembly enough to compress and remove the retaining ring.

NOTICE

Scratches on the air shaft will allow air to bypass the air shaft guide into the
lower legs, resulting in reduced spring performance.

Thread the anchor bolt into the air shaft 3-4 turns.

Firmly pull on the bolt to remove the air shaft assembly from the stanchion.

Remove the anchor bolt from the air shaft.

Insert the Maxle Ultimate™ through the dropout.

Leverage the Maxle Ultimate against a bench top, then unthread the bottom
cap counter-clockwise to loosen and remove it from the stanchion.

Remove the bottom cap o-ring. Apply grease and install a new o-ring.

12

Flat blade screwdriver

Retaining ring pliers

13

24 mm socket

14

15

15Air Spring Removal

Clean the inside and outside of the stanchion.

Remove the seal head assembly from the air shaft.

Clean the air shaft assembly.

Remove the outer and inner o-rings on the floating seal head. Apply grease
and install the new o-rings.

16

17

18

16Air Spring Removal

Remove the air piston outer o-ring. Apply grease and install a new o-ring.

Remove the top out bumper cone from the air piston. Clean the air piston.
Install the top out bumper cone onto the air piston.

19

20

17Travel Change Adjustment - Optional

Travel Change Adjustment - Optional

To increase or decrease the travel in your RS-1™ fork, the air spring must be replaced with the correct length air spring shaft assembly. Refer to the
RockShox® Spare Parts Catalog available on our website at www.sram.com/service for spare part kit details.

Solo Air™ Bottomless Token™ - Optional Installation

Bottomless Tokens can be added to, or removed from, the air top cap to fine-tune the bottomout feel and spring curve. Bottomless Tokens reduce the air
volume in your fork to create greater ramp at the end of the fork travel. Add tokens to maintain your fork's bottomless feel.

Thread a Bottomless Token into another token or into the bottom cap.

Tighten the token.

1

2

24 mm

3.4-4.5 N·m (30-40 in-lb) 8 mm

24 mm

3.4-4.5 N·m (30-40 in-lb) 8 mm

18Air Spring Installation

200 Hour Service

Air Spring Installation

Apply a liberal amount of grease to the inside of the stanchion, from the
unthreaded end of the tube to approximately 60 mm into the tube.

Apply a liberal amount of grease to the air piston and around the air shaft.

Install the floating seal head, floating seal head top out bumper, aluminum
support washer, wavy washer, and air shaft guide, in that order, onto the
air shaft.

Push the air shaft and seal head assembly into the unthreaded end of the
stanchion.

Orient the washers so that the aluminum support washer goes into the
upper tube first, followed by the wavy washer.

Use your fingers to firmly press the air shaft guide into the stanchion until it
snaps into place.

1

2

Seal head assembly orientation

3

4

19Air Spring Installation

Retaining rings have a sharper-edged side and a rounder-edged side.
Install retaining rings with the sharper-edged side facing the tool to allow
for easier installation and removal.

Push the air shaft into the stanchion to prevent scratching the air shaft when
installing the retaining ring.

Place the tips of the retaining ring pliers into the eyelets of the retaining
ring, then use the pliers to push the air shaft guide into the stanchion while
installing the retaining ring into the groove.

Hold the retaining ring in place and seat the retaining ring eyelets on either
side of the air shaft guide tab. The tab of the air shaft guide should be
positioned between the retaining ring eyelets .

Thread the anchor bolt into the air shaft 3-4 turns, then pull the air shaft out
of the stanchion. Remove the anchor bolt.

Confirm the retaining ring is properly seated in the retaining ring groove
by using the retaining ring pliers to rotate the retaining ring and air shaft
guide back and forth a few times.

Install the Maxle Ultimate™ through the dropout. Thread the bottom cap into
the bottom of the stanchion.

Leverage the Maxle Ultimate against a bench top, then tighten clockwise.

Pressurize the air spring to keep the air shaft extended during the air spring
installation.

Install the jounce bottom out bumper onto the air shaft with the tapered

side facing the base plate so that approximately 10 mm of the air shaft is

visible above the bumper.

5

Retaining ring pliers

6

24 mm

12 N•m (110 in-lb)

20 psi

7

8

20Carbon Fiber Upper Service

200 Hour Service

Carbon Fiber Upper Service

Stabilize the carbon fiber upper on a bench top or on the floor. Place the tip
of a downhill tire lever under the wiper seal. Press down on the downhill tire
lever handle to remove the wiper seal.

Clean the inside and outside of the carbon fiber upper.

Remove the wire spring from a new wiper seal. Insert the narrow end of the
wiper seal into the recessed end of the flangeless seal installation tool.

Use a soft face mallet to gently tap the seal installation tool and push the
wiper seal into the leg until the seal contacts the bottom of the leg bore.

Install the outer wire spring.

1

2

3

32 mm

Mallet & 32 mm

21Carbon Fiber Upper Service

Apply grease to the inner surface of the wiper seal.

Clamp the carbon fiber upper into a bicycle stand and position it at an angle
with the upper leg hole facing downward. Use the anchor tool to install the
anchor into the carbon fiber upper.

NOTICE

Make sure the wiper seal slides onto the tool without folding the outer lip of
the seal.

Tighten the anchor counter-clockwise. Remove the anchor tool from the
carbon fiber upper.

For easier installation, apply a thin layer of grease to the inside lip of the
anchor tool.

Position the carbon fiber upper at an angle with the upper leg hole facing
upward. Angle a syringe fitting in the upper leg hole so the oil will only
contact the inside of the leg.

Inject suspension oil into the carbon fiber upper leg.

NOTICE

Do not exceed the recommended oil volume as this can damage the fork.

Slide the stanchion with the spring assembly, air shaft first, into the carbon
fiber upper until it stops.

4

SRAM® Butter

5

Anchor tool

30 mm

12 N·m (110 in-lb)

15wt RockShox® standard syringe

10mL

6

7

22Carbon Fiber Upper Service

Position the fork horizontally in the bicycle stand.

Thread the anchor bolt into the air shaft.

For easier installation, apply a thin layer of grease to the hex wrench where
it contacts the anchor bolt.

NOTICE

Do not allow the bolt to fall off the hex wrench into the carbon fiber upper.

If the bolt falls off the hex wrench, remove the carbon fiber upper from the
bicycle stand and shake it to move the bolt close to the hole. Use a magnet
to help remove the bolt, and repeat the step.

Tighten the anchor bolt.

Install the access cover.

Refer to your pre-service recorded settings to pressurize your air spring, or
use the air chart on the fork's upper leg and pressurize the air spring.

You may see a drop in the indicated air pressure on the pump gauge while
filling the air spring; this is normal. Continue to fill the air spring to the
recommended air pressure.

200 Hour Service Continue the 200 Hour Service for a Charger 2 Damper™.

200 Hour Service Continue the 200 Hour Service for an Accelerator Damper™.

5mm, long hex bit socket

8

9

5 mm, long hex bit socket

8 N·m (70 in-lb)

10

11

23Charger 2 Damper™ Service

Charger 2 Damper™ Service

200 Hour Service

Charger 2 Damper Removal

NOTICE

Use aluminum soft jaws to protect the Charger 2 Damper assembly when using
a vise.

Inspect each part for scratches. Do not scratch any sealing surfaces when
servicing your suspension. Scratches can cause leaks.

When replacing seals and o-rings, use your fingers or a pick to remove the seal or
o-ring. Spray isopropyl alcohol on each part and clean with a rag. Apply grease to
the new seal or o-ring.

Crown Adjust: Turn the lockout adjuster knob to the open, unlocked
position.

Crown Adjust: Remove the low speed compression and lockout knob from
the knob base.

RLC

1

1.3 mm RLC

2a

24Charger 2 Damper Removal

Remote: Remove the upper spool, retention screw, and bottom spool from
the knob base.

Position the fork horizontally in the bicycle stand. Remove the rebound
adjuster knob.

Place an oil pan beneath the fork to catch the draining oil.

Loosen the damper side bottom bolt 3 to 4 turns.

Strike the bottom bolt to dislodge the shaft from the stanchion.

Remove the bottom bolt.

2.5 mm RL remote

RL remote

2b

Flat blade screwdriver

3

4

5 mm

5

Mallet

5 mm

25Charger 2 Damper Removal

Remove the stanchion from the carbon fiber upper.

If the stanchion does not slide out of the carbon fiber upper, the press fit of
the shaft may still be engaged. Reinstall the bottom bolt 2 to 3 turns and
repeat the previous step.

Insert the anchor tool into the bottom of the carbon fiber upper so that it
engages the damper anchor on the Charger 2 Damper™.

Rotate the anchor tool clockwise and unthread the Charger 2 Damper
assembly.

Remove the anchor tool and the Charger 2 Damper assembly from the
carbon fiber upper.

Clamp the wrench flats of the Charger 2 Damper assembly in a vise with the
rebound shaft oriented upward.

6

Anchor tool

7

8

30 mm socket & anchor tool

9

26Charger 2 Damper Removal

Use the seal head wrench flats and remove the rebound damper assembly.
Wrap a rag around the cartridge tube to absorb oil.

Remove and discard the seal head on the rebound damper shaft.

Remove the cartridge tube from the vise and pour the oil into an
oil pan.

Squeeze the bladder to drain the oil from the bladder assembly into an oil
pan.

15 mm

10

11

12

13

27Charger 2 Damper Removal

Clamp the wrench flats of the cartridge tube into a vise. With the cartridge
tube facing upward, spray isopropyl alcohol into it. Squeeze the bladder 2-3
times to ingest alcohol into the bladder.

Remove the assembly from the vise. With the cartridge tube downward,
squeeze the bladder until all of the isopropyl alcohol is drained into an oil
pan. Use an air compressor nozzle to dry the assembly.

14

15

28Bleed Procedure

200 Hour Service

Bleed Procedure

Clamp the wrench flats of the cartridge tube into a vise.
Wrap a rag around the cartridge tube to absorb oil.

Pour 3wt RockShox® suspension oil into the cartridge tube.

Squeeze the bladder until trapped air bubbles stop purging. Pour additional
oil into the cartridge tube to top it off.

Replace the glide ring on the Dig Valve™ on the rebound damper.

1

2

3wt

3

4

29Bleed Procedure

Apply SRAM® Butter to a new inner seal head o-ring. Install the seal head
on the rebound damper shaft.

Remove the bleed screw from the rebound damper seal head.

Insert the rebound adjuster knob into the rebound damper shaft until it
contacts the rebound adjuster screw. Rotate the knob counter-clockwise
until it stops to open the rebound.

Remove the rebound adjuster knob from the shaft.

Wrap a rag around the cartridge tube to absorb oil.

Install the rebound assembly into the cartridge tube. Tighten the rebound
seal head.

5

6

T107 2.5 mm hex or rebound adjuster knob

8

15 mm 9-10 Nm (80-90 in-lb)

30Bleed Procedure

Reposition the Charger 2 Damper™ in the vise at an angle with the bleed
port angled as upward as possible.

Install the bottom bolt into the rebound damper shaft 3-4 turns.

Fill a bleed syringe half full with suspension oil. Slowly depress the plunger
to remove any air bubbles from the syringe.

NOTICE

Only use the syringe included with the RockShox Standard or Charger
Bleed kit. Do not use syringes that have been in contact with DOT brake
fluid. DOT brake fluid will permanently damage the damper.

Thread the syringe into the seal head bleed port.

Depress the plunger to pressurize the damper assembly.

Push the rebound damper shaft down. Keep pressure on the plunger as
the syringe fills with oil. Pull up slowly on the rebound damper shaft. Keep
pressure on the syringe as oil fills the system.

Repeat pushing and pulling the rebound damper shaft, keeping pressure on
the plunger, until only small bubbles emerge from the damper.

9

10

3wt

RockShox® standard bleed syringe

11

12

31Bleed Procedure

Fully extend the rebound damper shaft. Push the syringe handle down, then
release the plunger. Allow the bladder to come to a natural resting position
by waiting a few moments until the syringe stops filling.

Use a rag to cover the bleed tip and Charger bleed port, then unthread and
remove the syringe.

⚠ CAUTION  EYE HAZARD

Fluid may eject from the bladder assembly if the bladder is not in its resting
position. Wear safety glasses.

Install the bleed screw.

Cycle the rebound damper shaft a few times.

Remove the bottom bolt from rebound damper shaft.

Clean the Charger 2 Damper™ assembly.

13

14

T10 1.1-2.3 Nm (10-20 in-lb)

15

32Bleed Procedure

Remove the damper anchor o-ring. Apply grease and install a new o-ring.

RLC

RL remote

16

33Carbon Fiber Upper Service

200 Hour Service

Carbon Fiber Upper Service

Stabilize the carbon fiber upper on a bench top or on the floor. Place the tip
of a downhill tire lever under the wiper seal. Press down on the downhill tire
lever handle to remove the dust wiper seal.

Clean the inside and outside of the carbon fiber upper.

Remove the wire spring from a new wiper seal. Insert the narrow end of the
wiper seal into the recessed end of the flangeless seal installation tool.

Use a soft face mallet to gently tap the seal installation tool and push the
wiper seal into the leg until the seal contacts the bottom of the leg bore.

Install the outer wire spring.

1

2

3

32 mm

Mallet

34Carbon Fiber Upper Service

Apply grease to the inner surface of the wiper seal.

Position the carbon fiber upper at an angle with the upper leg hole facing
upward. Angle a syringe fitting in the upper leg hole so the oil will only
contact the inside of the leg.

Inject suspension oil into the carbon fiber upper.

NOTICE

Do not exceed the recommended oil volume as this can damage the fork.

4

SRAM® butter

15wt

RockShox® standard syringe 10mL

5

35Charger 2 Damper™ Installation

200 Hour Service

Charger 2 Damper™ Installation

Install the Charger 2 Damper into carbon fiber upper until the lockout
extension shaft protrudes from the hole in the knob base.

Insert the anchor tool into the carbon fiber upper.

NOTICE

Make sure the wiper seal slides onto the tool without folding the outer lip of
the seal.

Tighten the anchor counter-clockwise. Remove the anchor tool from the
carbon fiber upper.

For easier installation, apply a thin layer of grease to the inside lip of the
anchor tool.

Clean the inside and outside of the stanchion

Slide the stanchion into the carbon fiber upper until it stops and the shaft is
visible through the bottom bolt hole.

1

2

Anchor tool

30 mm

12 N·m (110 in-lb)

3

4

36Charger 2 Damper™ Installation

Use a pick and needle nose pliers to remove the old crush washer from the
bottom bolt.

Hold the crush washer with needle nose pliers and unthread the crush
washer from the bolt by turning the bolt counter-clockwise with a 5 mm hex
wrench.

NOTICE

Dirty or damaged crush washers can cause oil to leak from the fork.

Install the bottom bolt and tighten.

Clean the entire fork.

200 Hour Service Continue the 200 Hour Service with Charger 2 Damper™ - Crown Installation.

200 Hour Service Continue the 200 Hour Service with Charger 2 Damper - Remote Installation.

5

5 mm & pick

5 mm & pliers

6

5 mm

6.8 N·m (60 in-lb)

7

37Charger 2 Damper™ Installation - Crown Adjust

200 Hour Service

Charger 2 Damper™ Installation - Crown Adjust

Clean the knob base.

Remove the glide ring, springs, and detent balls from the underside of the
low speed compression knob. Clean the knob.

Install a new glide ring into the groove. Install a spring into the hole on the
underside of the low speed compression knob. Install a detent ball on top
of the spring.

Apply grease to the underside of the low speed compression knob to hold
the spring and ball in place.

1

2

RLC

RLC

RLC

RLC

3

RLC

RLC

38Charger 2 Damper™ Installation - Crown Adjust

Remove the glide ring from the bottom of the lockout adjuster knob. Apply
grease and install a new glide ring.

Install the lockout adjuster knob on the knob base so the knob rotates from
open to closed. Install the low speed compression knob so the set screw in
the knob is aligned with the flat part of the lockout extension shaft.

Tighten the set screw.

This concludes the service of your RockShox® RS-1™ RLC suspension fork.

4

RLC

RLC

5

RLC

RLC

1.3 mm

0.3 N·m (2.5 in-lb)

39Charger 2 Damper™ Installation - Remote

200 Hour Service

Charger 2 Damper™ Installation - Remote

Clean the knob base.

Install and seat the lower spool on the cable stop. Position the upper spool
so the tab is 190° CCW from the cable stop. Install and tighten the retention
screw.

This concludes the service of your RockShox® RS-1™ RL remote suspension fork.

For Remote user manuals, please visit www.sram.com/service.

1 1

2

2.5 mm RL remote

RL remote

2.5 mm 0.9 N·m (8 in-lb)

40Accelerator Damper™ Service

Accelerator Damper™ Service

200 Hour Service

Accelerator Damper Removal

NOTICE

Some of the fasteners in this fork are reverse threaded. To avoid damaging the
fork when removing or installing a fastener, carefully read the instructions and
follow directional arrows.

Only use SRAM® Butter grease or Liquid O-Ring® PM600 military grease when
servicing RS-1™ forks. No other grease is approved for use.

When replacing seals and o-rings, use your fingers or a pick to remove the seal or
o-ring. Spray isopropyl alcohol on each part and clean with a rag.

Apply grease to the new seal or o-ring.

Inspect each part for scratches. Do not scratch any sealing surfaces when
servicing your suspension. Scratches can cause leaks.

Push the XLoc™ button in to the compressed (unlocked) position.

Position the fork horizontally in the bicycle stand. Remove the rebound
adjuster knob.

Place an oil pan beneath the fork to catch the draining oil.

Loosen the damper side bottom bolt 3 to 4 turns.

Strike the bottom bolt to dislodge the shaft from the stanchion.

Remove the bottom bolt.

1

Flat blade screwdriver

2

5 mm

3

Mallet

5 mm

41Accelerator Damper Removal

Remove the stanchion from the carbon fiber upper.

If the stanchion does not slide out of the carbon fiber upper, the press fit of
the shaft may still be engaged. Reinstall the bottom bolt 2 to 3 turns and
repeat the previous step.

Insert the anchor tool into the bottom of the carbon fiber upper so that it
engages the damper anchor on the Accelerator Damper.™

Rotate the anchor tool clockwise and unthread the Accelerator Damper
assembly.

Remove the anchor tool from the carbon fiber upper.

The XLoc™ hose will spin as you loosen the anchor from the carbon fiber
upper. This is normal.

Guide the XLoc hose through the grommet while pulling down on the
anchor tool to reveal the Connectamajig.™

Remove the anchor tool.

4

Anchor tool

5

30 mm & anchor tool

6

Anchor tool

7

42Accelerator Damper Removal

Push the XLoc™ button to release it to the extended (locked) position. Rotate
the XLoc gate adjuster counter-clockwise, in the direction of the arrow, until
it stops.

Unthread and remove the knurled collar from the Connectamajig™.

NOTICE

Failure to lock the XLoc remote before disconnecting it will result in oil
leaking from the XLoc. This will require a complete bleed of the system.

Loosen the grommet from the assembly hole. Remove the hose and
grommet.

Insert the Maxle Ultimate™ through the dropout.

Leverage the Maxle Ultimate against a bench top, then use a
wrench to unthread the bottom cap counter-clockwise to loosen and
remove it from the stanchion.

8

6 & 9 mm

9

24 mm

10

43Accelerator Damper Removal

Remove the bottom cap o-ring.

Apply grease and install a new o-ring.

11

44Accelerator Damper™ Service

200 Hour Service

Accelerator Damper™ Service

Clamp the Accelerator Damper assembly into a bicycle stand with the
rebound shaft oriented downward.

Unthread the damper anchor from the cartridge tube and remove the
compression damper.

NOTICE

The components of this fork are made from lightweight materials and can
be damaged by improper tool usage. Make sure the wrench does not slip
off the wrench flats. This can cause damage by rounding the edges.

Clean the compression damper.

Remove both of the compression damper o-rings. Apply grease and install
new o-rings.

1

2

12 mm & adjustable wrench

3

4

45Accelerator Damper™ Service

Remove the damper anchor o-ring. Apply grease and install a new o-ring.

Remove the cartridge tube from the bicycle stand and pour the oil into an
oil pan. Cycle the rebound shaft to make sure the oil has drained from the
system.

Clamp the cartridge tube into a bicycle stand with the rebound shaft
oriented upward.

Unthread the damper seal head from the cartridge tube and remove the
rebound assembly.

NOTICE

The components of this fork are made from lightweight materials and can
be damaged by improper tool usage. Do not allow the wrench to slip off the
wrench flats. This can cause damage by rounding the edges.

5

6

7

22 mm & adjustable wrench

8

46Accelerator Damper™ Service

Clean the inside and outside of the cartridge tube.

Clean the rebound assembly.

Remove the damper seal head from the rebound shaft.

9

10

11

47Accelerator Damper™ Service

Remove the damper seal head o-ring. Use a pick to pierce and remove the
rod wiper seal.

Apply grease and install a new o-ring and rod wiper seal.

Install the stepped face of the rod wiper seal into the threaded end of the
seal head.

Remove the glide ring from the Dig Valve™. Install a new glide ring.

Install the damper seal head onto the rebound shaft with the threads
oriented toward the piston.

NOTICE

Do not allow the outer lip of the rod wiper seal to fold over when installing
the damper seal head onto the rebound shaft.

12

13

14

48Accelerator Damper™ Service

Clamp the cartridge tube into a bicycle stand with the bypass hole oriented
downward.

Pinch the glide ring closed against the piston, then thread the seal head
and rebound assembly into the cartridge tube.

While holding the cartridge tube in place, thread the damper seal head into
the cartridge tube and tighten the rebound assembly.

Remove the cartridge tube assembly from the bicycle stand, turn it over, and
clamp the cartridge tube assembly into the bicycle stand so the rebound
shaft is oriented downward.

Pull down on the rebound shaft.

15

16

17

22 mm

12.4 N·m (110 in-lb) Wrench

18

49Accelerator Damper™ Service

Rotate the rebound adjuster counter-clockwise to the open position.

The rebound adjuster screw will click as it is adjusted.

Pour suspension fluid into the cartridge tube.

Pour the fluid slowly to avoid introducing air into the fluid.

Slowly cycle the rebound shaft a few times to bleed the system.

⚠ CAUTION EYE HAZARD

Pull the rebound shaft down slowly. Failure to do so can result in fluid
ejecting from the cartridge tube. Wear safety glasses.

Thread the knurled collar onto the Connectamajig™ until it is finger tight.

Push the XLoc™ button in to the compressed (unlocked) position.

19

2.5 mm

20

75mL

5wt

21

22

50Accelerator Damper™ Service

Slowly push the rebound shaft into the cartridge tube until there is about
50 mm of shaft exposed.

Slowly insert the compression damper into the cartridge tube while gently
rocking the compression damper side to side.

Thread the compression damper into the cartridge tube.

The rebound shaft will extend downward as you insert the
compression damper.

Thread the damper anchor into the cartridge tube and tighten.

Wrap a rag around the bleed hole and firmly grasp the cartridge tube to
prevent fluid from ejecting from the bleed hole.

Slowly push the rebound shaft into the cartridge tube until there is about
30 mm of shaft exposed, and then fully extend again. Cycle the rebound
shaft a few times, always leaving 30 mm of shaft exposed, to purge the
system of excess fluid and air bubbles.

NOTICE

Do not push the rebound shaft all the way into the cartridge tube as this will
purge too much fluid. Always leave about 30 mm of shaft exposed.

⚠ CAUTION EYE HAZARD

Cycle the rebound shaft slowly. Failure to do so can result in fluid ejecting
from the cartridge tube. Wear safety glasses.

23

24

25

12 mm

12.4 N·m (110 in-lb) Adj wrench

26

51Accelerator Damper™ Service

Push the XLoc™ button to release it to the extended (locked) position.

Unthread the Connectamajig™ from the knurled collar.

NOTICE

Failure to lock the XLoc remote before disconnecting it will result in fluid
leaking from the XLoc. This will require a complete bleed of the system.

27

52Carbon Fiber Upper Service

200 Hour Service

Carbon Fiber Upper Service

Stabilize the carbon fiber upper on a bench top or on the floor. Place the tip
of a downhill tire lever under the wiper seal. Press down on the downhill tire
lever handle to remove the dust wiper seal.

Clean the inside and outside of the carbon fiber upper.

Remove the wire spring from a new wiper seal. Insert the narrow end of the
wiper seal into the recessed end of the flangeless seal installation tool.

Use a soft face mallet to gently tap the seal installation tool and push the
wiper seal into the leg until the seal contacts the bottom of the leg bore.

Install the outer wire spring.

1

2

3

32 mm

Mallet

53Carbon Fiber Upper Service

Apply grease to the inner surface of the wiper seal.

Position the carbon fiber upper at an angle with the upper leg hole facing
upward. Angle a syringe fitting in the upper leg hole so the oil will only
contact the inside of the leg.

Inject 10 mL suspension oil into the carbon fiber upper.

NOTICE

Do not exceed the recommended oil volume as this can damage the fork.

4

SRAM® Butter

15wt

RockShox® standard syringe 10mL

5

54Accelerator Damper™ Installation

200 Hour Service

Accelerator Damper™ Installation

Insert the anchor tool into the leg.

N

NOTICE

Make sure the wiper seal slides onto the tool without folding the outer lip of
the seal.

Feed the hose through the carbon fiber upper until it comes through the
inside of the tool.

Remove the anchor tool.

Thread the Connectamajig™ into the knurled collar and tighten.

Push the XLoc™ button in to the compressed (unlocked) position.

Anchor tool

1

2

6 & 9 mm

55Accelerator Damper™ Installation

Install the anchor tool onto the Accelerator Damper™.

Insert the anchor tool and Accelerator Damper into the carbon fiber upper
while simultaneously pulling the XLoc™ hose through the leg.

NOTICE

Make sure the wiper seal slides onto the tool without folding the outer lip of
the seal.

Tighten the anchor counter-clockwise.

The XLoc hose will spin as you tighten the anchor. This is normal.

Remove the anchor tool.

Clean the inside and outside of the stanchion

Install the Maxle Ultimate™ through the dropout. Thread the bottom cap into
the bottom of the stanchion.

Leverage the Maxle Ultimate against a bench top, then tighten clockwise.

Anchor tool

3

4

30 mm

12 N·m (110 in-lb)

5

6

24 mm 12 N•m (110 in-lb)

56Accelerator Damper™ Installation

Push the XLoc™ button to release it to the extended (locked) position.

Slide the stanchion into the carbon fiber upper until it stops and the shaft is
visible through the bottom bolt hole.

Install the bottom bolt and tighten.

Install the rebound adjuster knob.

7

8

5 mm 6.8 N·m (60 in-lb)

9

57Accelerator Damper™ Installation

Press the grommet into the assembly hole.

Clean the entire fork.

This concludes the service of your RockShox® RS-1™ Accelerator Damper™ suspension fork.

For Remote bleed and user manuals, please visit www.sram.com/service.

10

11

This publication includes registered trademarks and trade names of the following companies:

Liquid-O-Ring® is a registered trade name of Oil Center Research, Inc.

TORX® is a registered trademark of Acument Intellectual Properties, LLC.

www.sram.com

ASIAN HEADQUARTERS

SRAM Taiwan
No. 1598-8 Chung Shan Road
Shen Kang Hsiang, Taichung City
Taiwan R.O.C.

WORLD HEADQUARTERS

SRAM LLC

1000 W. Fulton Market, 4th Floor

Chicago, Illinois 60607

USA

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