Promax QR-1 Quick Release Clamp - 31.8mm color:Black it provides five brightness levels

it provides five brightness levels and a Strobe mode

Hard molded polypropylene shell

1-1/8" integrated headtube

from cycling scenic routes and perfecting your golf swing to tackling challenging hiking trails

Ultra-low rolling resistance thanks to a smooth central tread

Promax QR-1 Quick Release Clamp - 31.8mm color:Black it provides five brightness levelsQR 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