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High Tech Campus 92, 5656 AG Eindhoven, The Netherlands Phone: +31-402-612222
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© Sep. 2024 by Shimano Inc. ITP
UM-2C60A-002
Tightening torque:
5 - 7.5 N·m {44 - 65 in. lbs.}
User's manual
Rear E-THRU I-type 12 mm
User's manuals in other languages are available at :
http://si.shimano.com
IMPORTANT NOTICE
• Contact the place of purchase or a bicycle dealer for information on
installation and adjustment of the products which are not found in the
user's manual. A dealer's manual for professional and experienced
bicycle mechanics is available on our website (http://si.shimano.com).
• Do not disassemble or alter this product.
For safety, be sure to read this user's manual thoroughly
before use, and follow it for correct use.
Important Safety Information
For replacement information, contact the place of purchase or a bicycle
dealer.
WARNING
•
BEFORE USE, CAREFULLY READ THE REAR E-THRU I-TYPE 12 mm SYSTEM
USER'S MANUAL. IF YOU HAVE ANY QUESTIONS, ASK YOUR DEALER.
• The Rear E-THRU I-type 12 mm can be used in combination with a
special frame and a special hub/wheel. If it is used in combination with
any other frame or hub/wheel, it may cause the wheel to become
detached from the bicycle while you are riding and result in serious
bodily injury.
• If the Rear E-THRU I-type 12 mm is not correctly installed to the bicycle,
the wheel may fall off the bicycle during riding, and serious injury may
occur as a result.
• If the E-THRU lever is on the left side
(rotor side) of the frame, make sure that
the E-THRU lever does not interfere with
the rotor (Figure 1). In addition, make
sure that the E-THRU lever does not
interfere with the frame, other parts,
accessories, etc., or come into contact
with obstructions (such as shrubs and
rocks) while riding. If the E-THRU lever
loosens owing to interference or contact
with foreign objects, the wheel will
loosen and begin to rattle. If this occurs,
contact the place of purchase or a bicycle
dealer. Riding the bicycle while the wheel
remains loose may lead to the bicycle
collapsing and result in serious injury.
• Do not touch the disc brake rotor while handling the E-THRU system. In
addition, do not operate the E-THRU lever while the wheel is turning.
The disc brake rotor is very sharp and serious injury may occur as a
result of touching it.
• The brake calipers and disc brake rotor become very hot when the
brakes are being used. To avoid the danger of burns, be sure to check
that they have cooled down sufficiently after riding the bicycle before
handling the E-THRU system.
• Before installing the wheel, remove any foreign particles and dust from
the fork end hole, the frame-side thread, and the axle openings.
Foreign particles or dust may interfere with the correct installation of
the E-THRU system, and if the hub and axle are not installed correctly,
the wheel may come off and serious injury may occur as a result.
• The adjuster cannot rotate more than 3 turns.
Do not turn the adjuster forcibly in either the tightening or loosening
direction when the rotation of the adjuster feels heavy. Forcibly turning
the adjuster may damage it.
Figure 1
E-THRU
lever
Disc brake rotor
CLOSE position
• If the bicycle is ridden without an adjuster, there are cases where
subsequently adjustment becomes impossible; therefore, be sure to
replace the E-THRU axle with a new one.
• After reading the user's manual carefully, keep it in a safe place for
later reference.
Note
• Always check the E-THRU hubs before riding to make sure the wheels
are correctly installed on the frame. This is especially important after
you park your bicycle in a public place.
• Make sure that the E-THRU levers are pushed fully to the CLOSE
position (the side of the lever with the inscription "CLOSE" must be
facing away from the bicycle). As show in the figure, tilt the levers. Do
not rotate them.
CLOSE position
OPEN position
• In the case of replacing the E-THRU lever axle with another one, make
sure that the one replacing the existing E-THRU lever axle is the same
in model name as the E-THRU model provided on the frame.
If the model name is different, the replacing E-THRU lever axle may not
be mounted correctly onto the frame due to differences in axial length,
thread size, housing diameter, etc.
• Products are not guaranteed against natural wear and deterioration
from normal use and aging.
• For maximum performance we highly recommend Shimano lubricants
and maintenance products.
Regular inspections before riding the bicycle
Before riding the bicycle, check the following items. If any problems are
found with the following items, contact the place of purchase or a bicycle
dealer.
• Are the wheels correctly installed to the frame?
• Are the E-THRU levers fully pushed to the CLOSE position?
QUICK CHECK
Lift up the bicycle so that the wheel is off the ground, and give the top of
the tire a few sharp downward blows as shown in Figure 1. Also shake
the wheel from side to side as shown in Figure 2 to make sure that there
is absolutely no looseness in the wheel. This check does not guarantee
that the E-THRU lever has received adequate tightening torque. If you
are uncertain as to whether the E-THRU lever is tightened correctly,
repeat the installation procedure as explained in "Installing the wheel"
in these Service Instructions before riding the bicycle.
Figure 1 Figure 2
Names of parts
E-THRU lever
Hub shoulder
Fork end
Axle opening
Adjuster
Operation
NOTICE
• Always be sure to operate the E-THRU lever with your hand. Never use
a hammer or other object to close the lever. If this is not observed, the
E-THRU system or the frame may be damaged.
What is the E-THRU hub?
It is a mechanism that uses the E-THRU lever on the hub to easily install
and remove the wheel.
E-THRU hub function
Tilt the E-THRU lever toward the CLOSE position and clamp the frame to
secure the wheel in the correct position.
E-THRU lever
CLOSE position
OPEN position
Installing the wheel
1. Align the hub shoulder correctly
with the fork end.
Hub
shoulder
Move the E-THRU lever to the OPEN
2.
position, and insert it into the hole
in the fork end on the side opposite
to where the thread is. Pass the
lever axle all the way through until
it reaches the thread part on the
other side.
3.
Turn the E-THRU lever to screw the E-THRU lever axle into the frameside thread.
Open and close the E-THRU lever; tighten the E-THRU lever axle into
the frame-side thread until some resistance is felt when the E-THRU
lever is parallel to the hub axle while being moved toward the CLOSE
position.
2
CLOSE
position
Checking
position
OPEN
position
1
Fork end
4. For safety, make sure that the E-THRU lever runs along the frame
when it is in the CLOSE position. Using just the force of your hand,
push the E-THRU lever with the palm of your hand until it moves all
the way to the CLOSE position. Check that the side of the E-THRU
lever with the inscription "CLOSE" is facing away from the bicycle.
Make sure that the E-THRU lever is not interfering with the frame, other
parts, accessories, etc. In addition, be careful that it does not come into
contact with obstructions (such as shrubs and rocks) while riding. If the
E-THRU lever is not positioned correctly, the adjuster needs to be adjusted.
For adjustment procedures, refer to "Adjusting the adjuster".
CLOSE position
E-THRU
lever
Disc brake rotor
If there are any instructions on the tightening position for the E-THRU
lever in the Service Instructions, follow them when tightening.
Removing the wheel
Move the E-THRU lever from the CLOSE position to the OPEN position,
and then turn the E-THRU lever counterclockwise to remove the E-THRU
axle from the frame-side thread. Once the E-THRU axle has been removed
from the frame-side thread, remove the E-THRU axle from the wheel.
2
1
Adjusting the adjuster
1. Screw the E-THRU lever axle into the frame-side thread in step 3 of
Installing the Wheel, then turn the E-THRU lever to adjust it so that it
moves to the correct CLOSE position, and check the torque.
2. Note
•
Carry out the adjustment prior to closing the E-THRU lever. If adjusted
after closing the E-THRU lever, the adjuster may be damaged.
• If the holding force is weak when moving the E-THRU lever to the
CLOSE position, insert a 2.5mm hexagon wrench into the adjuster
hole and turn it clockwise.
•
Check the results of step 1. If the holding force is too strong and the E-THRU
lever cannot be easily moved down to the CLOSE position, insert a 2.5mm
hexagon wrench into the adjuster hole and turn it counterclockwise to weaken
it. Loosen the adjuster gradually in stages up to the point where it would
require the full exertion of your strength to close the E-THRU lever.
Adjuster
Fixing torque:
OPEN
position
3. Repeat this adjustment until the correct installation force is obtained
at the correct lever position.
ne Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan
note: specifications are subject to change for improvement without notice. (English)
Stronger
Fixing torque:
Weaker
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