// MANUAL
d. Installing a disk brake or rim brake rear wheel
CAUTION: If your bike is equipped with a rear disk brake, be careful not to damage
the disk, caliper or brake pads when re-inserting the disk into the caliper. Never activate a
disk brake’s control lever unless the disk is correctly inserted in the caliper.
1. With a cam action system, move the cam lever to the OPEN position (see g. 8 a &
b). The lever should be on the side of the wheel opposite the derailleur and freewheel
sprockets.
2. On a derailleur bike, make sure that the rear derailleur is still in its outermost, high gear,
position; then pull the derailleur body back with your right hand. Put the chain on top of the
smallest freewheel sprocket.
3. On single-speed, remove the chain from the front sprocket, so that you have plenty of
slack in the chain. Put the chain on the rear wheel sprocket.
4. Then, insert the wheel into the frame dropouts and pull it all the way in to the dropouts.
5. On a single speed or an internal gear hub, replace the chain on the chainring; pull the
wheel back in the dropouts so that it is straight in the frame and the chain has about 1/4
inches of up-and-down play.
6. With a cam action system, move the cam lever upwards and swing it into the CLOSED
position (g. 8 a & b). The lever should now be parallel to the seat stay or chain stay and
curved toward the wheel. To apply enough clamping force, you should have to wrap your
ngers around the fork blade for leverage, and the lever should leave a clear imprint in the
palm of your hand.
7. With a through-bolt or bolt-on system, tighten the fasteners to the torque specications
in Appendix E or the hub manufacturer’s instructions.
NOTE: If, on a traditional cam action system, the lever cannot be pushed all the way to a
position parallel to the seat stay or chain stay, return the lever to the OPEN position. Then
turn the tension adjusting nut counterclockwise one-quarter turn and try tightening the
lever again.
WARNING: Securely clamping the wheel with a cam action retention device takes
considerable force. If you can fully close the cam lever without wrapping your ngers
around the seat stay or chain stay for leverage, the lever does not leave a clear imprint in
the palm of your hand, and the serrations on the wheel fastener do not emboss the surfa-
ces of the dropouts, the tension is insucient. Open the lever; turn the tension adjusting
nut clockwise a quarter turn; then try again. See also the rst WARNING in this Section, p.
19.
8. If you disengaged the brake quick-release mechanism in 3. c. 2) above, re-engage it to
restore correct brake pad-to-rim clearance.
9. Spin the wheel to make sure that it is centered in the frame and clears the brake pads;
then squeeze the brake lever and make sure that the brakes are operating correctly.
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