The quick-release skewer consists of two handling components (see diagram on right):
1) The closing lever located on one end of the hub exerts a clamping force through a cam.
2) The pre-tension of the axle is adjusted with the clamping nut located on the opposite side of the hub.
For the correct use of the quick-release skewer, follow these steps:
o To open, move the lever towards the ‘Closed’ marking on the lever. Once open you will be able to read
the ‘Open’ side of the lever. Then release the pressure on the cam by undoing the nut at the other end of
the skewer until the hub clears the fork drop out.
o To close, move the lever towards the ‘Open’ marking on the skewer. Once closed you will be able to read
the ‘Closed’ side of the lever. When closing adjust the tension with clamping nut at the other end of the
skewer. It should close easily until about halfway then should tighten for the second half of the operation.
Open and close the lever several times, adjusting the nut about half a turn until the clamping force is
correct.
4.4 Adjusting and Maintaining the Brakes
Make sure the rotors are true. Spin the wheel and sight against the brake pads, watching for wobbles in the rotor. If the rotor clears the pads and caliper, the rotor is true
enough even if there are slight wobbles. If you spot a warp in the rotor, straighten it by clamping a clean adjustable wrench along the rotor and bending gently toward true.
Make sure everything that touches the rotor is perfectly clean. Any grease/oil/other contamination will reduce braking grip and may cause brake squealing.
If your brakes squeal, and no obvious contamination is present on the brake pads, something may be loose. Check all bolts holding the rotor on, as well as the caliper bolts and
adapter bolts (if your bike is fitted with one).
If everything’s snug, the rotor and pads should be cleaned with isopropyl alcohol or similar to remove contamination. If brake squealing continues, take your bike to your
dealer for professional service.
If one lever pulls back farther than the other, try to equal out the travel by adjusting the cable tension at the brake lever or caliper by screwing the barrel nut in or out, then
tighten the lock nuts. Be sure to adjust the brake caliper inner pad adjust screw as well.
Regularly check the performance of the brakes and contact your dealer for a brake service if you notice a performance reduction.
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