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seat post clamp - Quick Release
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 conve-
nient, but you must understand and apply the correct technique to adjust them properly before riding your bicy-
cle 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.
adjusting a quick release seatpost clamp
In a seatpost quick release system, the seatpost is clamped in place by the force of the quick release cam
pushing against one side of the clamp and pulling the tension adjusting nut, by way of the skewer, against the
other. 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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