Currie tech Izip Assembly Manual page 6

Appendix: Quick Release Levers
Many Izip and Ezip bicycle models use quick release (QR) levers to facilitate common tasks such as front wheel removal and seat height adjustment.
When properly adjusted, quick release levers are both safe and convenient, but you must understand and apply the correct technique to adjust them
properly before riding your bicycle to prevent serious injury or death from a fall.
Quick release levers use a cam action to clamp the wheel or other components in place. Because of their adjustable nature, it is critical that you
understand how they work, how to use them properly, and how much force you need to apply to secure them.
Warning: The full force of the cam action is needed to clamp the wheel securely. Holding the nut with one hand and turning the lever like a wing nut is
NOT a safe or effective way to close a quick release and will not clamp the wheel or other components safely.
QUICK RELEASE USAGE
Riding with an improperly adjusted wheel quick release can allow the wheel to wobble or fall off the bicycle, which can cause serious injury or death.
Therefore, it is essential that you:
1. Ask your dealer or a local bike shop to help you make sure you know how to install and remove your wheels safely.
2. Understand and apply the correct technique for clamping your wheel in place with a quick release.
3. Each time, before you ride the bike, check that the wheel is securely clamped.
Installing a quick release front wheel
In a quick release system, the wheel hub is clamped in place by the force of the quick release cam pushing against one dropout and pulling the tension
adjusting nut, by way of the skewer, against the other dropout. The amount of clamping force is controlled by the tension adjusting nut. Turning the
tension adjusting nut clockwise while keeping the cam lever from rotating increases clamping force; turning it counterclockwise while keeping the cam
lever from rotating reduces clamping force. Less than half a turn of the tension adjusting nut can make the difference between safe clamping force and
unsafe clamping force.
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a
b
Springs
Tension
adjusting nut
1. Remove the tension adjusting nut and one of the small springs, then slide the quick release skewer through the hub. If your bicycle has a disc
brake, insert the skewer starting on the side with the brake rotor. Replace the spring and tension adjusting nut (fig a).
2. If your bicycle has rim brakes, disengage them to increase the clearance between the tire and brake pads.
3. Install the wheel into the dropouts, making sure the quick release lever is on the left side of the bicycle.
4. Holding the quick release lever in the OPEN position with one hand, tighten the tension adjusting nut with your other hand until it is finger tight
against the fork dropout.
5. 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, move the quick-
release lever upwards and swing it into the CLOSED position (fig b & c) 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.
WARNING: Securely clamping the wheel takes considerable force. If you can fully close the quick release without wrapping your fingers
around the fork blade for leverage, and the lever does not leave a clear imprint in the palm of your hand, the tension is insufficient. Open
the lever; turn the tension adjusting nut clockwise a quarter turn; then try again.
6. If 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.
7. Re-engage the brake to restore correct brake pad-to-rim clearance; 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.
c
open closed
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