Promax QR-1 Quick Release Clamp - 31.8mm color:Black Ultra-low rolling resistance thanks to

Ultra-low rolling resistance thanks to a smooth central tread

allowing users to 'flip' the lever for use on either side of the handlebar

Ensure the safety of your eyes by shielding them from debris and harmful UV rays

Weight Limit: 45 kg (99 lbs)

The perfect length to work with both todays slightly thicker 4 bolt chain rings as well as standard 5 bolt rings too

Promax QR-1 Quick Release Clamp - 31.8mm color:Black Ultra-low rolling resistance thanks toQR 1 seatpost clamps are cold forged and CNC machined from 6061 T6 aluminum alloy. The QR 1, as the name implies, has a quick release lever, making seat height adjustments a snap. Weighing just 30 grams 1. 1 ounces in the 31. 8 size, its as lightweight as it is tough. The head of the lever and the face of the clamp are given a proprietary low friction surface treatment that ensures smooth lever action for the life of the clamp without the need for a