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b. Installing a disk brake or rim brake Front Wheel
CAUTION: If your bike is equipped with a front 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. See also Section 4.C.
(1) If your bike has cam action front wheel retention, move the cam lever so
that it curves away from the wheel (fig. 8b). This is the OPEN position. If your
bike has through bolt or bolt-on front wheel retention, go to the next step.
(2) With the steering fork facing forward, insert the wheel between the fork
blades so that the axle seats firmly at the top of the fork dropouts. The cam lever,
if there is one, should be on rider's left side of the bicycle (fig. 8a & b). If your
bike has a clip-on type secondary retention device, engage it.
(3) If you have a traditional cam action mechanism: holding the cam lever
in the ADJUST position with your right hand, tighten the tension adjusting nut
with your left hand until it is finger tight against the fork dropout (fig. 8a). If you
have a cam-and-cup system: the nut and cup (fig. 8b) will have snapped into the
recessed area of the fork dropouts and no adjustment should be required.
(4) While pushing the wheel firmly to the top of the slots in the fork dropouts,
and at the same time centering the wheel rim in the fork:
(a) With a cam action system, move the cam lever upwards and swing it into
the CLOSED position (fig. 8a & b). The lever should now be parallel to the fork
blade and curved toward the wheel. To apply enough clamping force, you should
have to wrap your fingers around the fork blade for leverage, and the lever
should leave a clear imprint in the palm of your hand.
(b) With a through-bolt or bolt-on system, tighten the fasteners to the torque
specifications in Appendix D 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 fork blade, 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 fingers around the fork blade 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 surfaces of the
dropouts, the tension is insufficient. Open the lever; turn the tension
adjusting nut clockwise a quarter turn; then try again. See also the first
WARNING in this Section, p. 18.
(5) If you disengaged the brake quick-release mechanism in 3. a. (1) above,
re-engage it to restore correct brake pad-to-rim clearance.
(6) 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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