O W N E R S M A N U A L F O R
580 N. Westgate Dr.
Grand Junction, CO 81505 USA
1.800.999.8277
www.whitebrotherscycling.com
A division of
TABLE OF CONTENTS
APPLICATIONS..........................................PAGE 3
FORK INSTALLATION..............................PAGE 3
TUNING.......................................................PAGE 4
MAINTENANCE........................................PAGE 5
EXPLODED VIEWS...................................PAGE 6
WARRANTY...............................................PAGE 7
SAFETY
1.) NEVER REMOVE STEER TUBE FROM CROWN. THIS IS A PRESSED IN PART. REMOVING IT WILL RENDER
BOTH THE CROWN AND STEERER INOPERABLE.* MAKE SURE THE FORK CAPS AND ALL FORK HARDWARE
(brake studs, pinch bolts, etc.) ARE TIGHT.
2.) DO NOT PERFORM ANY MODIFICATIONS OR ADJUSTMENTS THAT ARE NOT OUTLINED IN THIS
MANUEL. SEE THE TUNING SECTION FOR MORE DETAILS.
3.) INSPECT YOUR FORK BEFORE EVERY RIDE. INSPECT THE CROWN, TUBES, AND AXLE SEAT AREAS FOR
ANY SIGNS OF FATIGUE, BENDING, CRACKING OR OTHER DAMAGE. IF YOU NOTICE ANY TYPE OF
DAMAGE, DO NOT RIDE IT. RETURN IT TO YOUR DEALER FOR A COMPLETE INSPECTION AND NECESSARY
REPAIR OR WARRANTY STEPS. PLEASE REFER TO THE WARRANTY SECTION OF THIS MANUAL.
4.)PERFORM ALL RECOMMENDED MAINTENANCE ACCORDING TO THE MAINTENANCE SECTION OF THIS
MANUAL. FAILURE TO PERFORM MAINTENANCE COULD DRASTICALLY REDUCE THE FORKS LIFE AND
PERFORMANCE.
5.)WHITE BROTHERS RECOMMENDS THAT YOU WEAR PROPER SAFETY EQUIPMENT EVERY TIME YOU
RIDE, INCLUDING A APPROVED BICYCLE HELMET. NEVER RIDE AT NIGHT WITHOUT LIGHTS.
*IF SERVICE BECOMES NECESSARY OR REMOVAL OCCURS, PLEASE CALL WHITE BROTHERS CUSTOMER SERVICE FOR PRODUCT
EVALUATION AND DIAGNOSIS.
INTRODUCTION
Thanks for purchasing your new White Brothers fork. Our forks are designed so you can perform at your absolute peak.
Your new White Brothers fork has air damping and is air sprung for light weight performance. The air spring and damper is
set stock to satisfy a wide range of rider weights and riding styles. Fine tuning can be easily accomplished by changing air
pressure in the air spring cartridges. See the adjustment and maintenance section for rider weight verses air pressures settings.
For very heavy or very light riders the damper adjustor can be replaced with various adjustor sizes to give a wide range of
damping. Steering accuracy is improved over conventional MTB forks by utilizing superior materials and design. These
include oversized 31.75mm fork tubes, a torsion box design steering crown with pressed in tubes, a one piece billet brake arch
and extra thick drop-outs. The WB forks bootless design allows a considerable amount more slider/stanchion overlap than
competitor forks which attributes to fork steering accuracy. Fork travel has been chosen to offer the best performance possible
for each forks intended use. Every effort has been made to make the White Brothers forks very light and perform at a level
superior to other forks on the market. To insure peak performance, proper installation and periodic maintenance is required.
White Brothers forks are designed for off road use only. They are not equipped with reflectors for on road use. If you are
going to use your fork on road, have a dealer or mechanic install reflectors that meet the Consumer Product Safety
Commission’s requirements. When riding on public land, please respect the rights of others and stay on established paths and
trails. By riding responsibly, you are helping ensure the future of our wonderful sport.
FORK INSTALLATION
White Brothers forks feature a 1-1/8” threadless steer tube. If you have a threaded type fork on your bicycle, consult
your dealer for the appropriate upgrade parts necessary to convert to a 1-1/8” threadless steer tube.
1. Remove your old fork from the bicycle. Measure the diameter and length of your old fork’s steerer tube to ensure
that the White Brothers steerer tube is the correct diameter and sufficient length for the installation.
2. Remove the crown race from your old fork.
3. Press the crown race onto your new White Brothers fork (see Figure #1).
4. Preassemble the headset by sliding the fork steerer tube through the bearings. Then install the head set’s upper race,
headset spacer (optional), and stem onto the fork steerer tube. Adjust with optional spacers to your preferred height
(See Figure #2). Refer to the head set owners manual if there is any questions about the preassemble.
5. Mark the steerer tube at the top of the stem. The steerer tube will now need to be cut to the correct length.
Disassemble and cut 3mm (1/8”) below the mark. Consult your dealer or mechanic if you don’t have the proper
tools to cut the steerer tube.
6. The star fangled nut must now be installed into the steerer tube. If you don’t have the set tool we recommend
dealer installation of this part (See Figure #3).
7. Clean and grease all headset bearings and races to prepare them for assembly. Note: Replace the bearings if there is
any sign of wear or corrosion.
8. Now loosely assemble the headset, stem and handle bars as in step four.
9. Install the headset top cap into the star fangled nut. Tighten until there is no play in the steering. The fork should
rotate freely in the head tube. Straighten the stem in relation to the front tire and tighten the pinch bolts on the stem.
If there are any questions consult your dealer or mechanic.
10. Install your front brake and adjust according to the manufacturer’s instructions.
11. Adjust the quick release on the hub to clear the secondary catches on the drop-outs. Tighten the quick release after
the axle is properly seated in the drop-out. Ensure that there is sufficient thread engagement (5 or more threads with
the quick release in the lock position) due to the thicker White Brothers drop-outs. Install the front wheel per
manufacturer’s specifications.
12. Check to see that the brakes are adjusted and properly working. Make sure the brake cable doesn’t interfere with
any part of the bike when the fork is compressed and released.
Warning: When installing the wheel or a new tire, check for minimum clearance. Measure from the highest point on
the tire to the underside of the crown. There must be 1/8” or 3mm more clearance than the fork’s travel to ensure
adequate clearance in all riding conditions. Any less clearance can result in the tire hitting the crown resulting in
serious injury or death.
Steering Stem
Frame with
Headset Cups
Headset Spacer
Headset Upper Race
Headset Lower Race
Fork Crown
Star Fangled Nut
Steerer Tube
Figure #1
Figure #2
Figure #3
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