Promax QR-1 Seatpost Clamp - 31.8mm QR Red CheckoutTitle=SRAM Road Shifter Clamp Kit - 2009-2011 Vibration damping backer strip

Vibration damping backer strip

Features a side cutter

Crank Spindle Diameter 22mm Crankset Weight 770g Pedals Thread 9/16 BB Inclusion No Crankset Material Cr-Mo Drivetrain Spacing BMX Primary Color Black Crank Arm Length 170mm Interface 22mm

Safe for carbon fiber

Promax QR-1 Seatpost Clamp - 31.8mm QR Red CheckoutTitle=SRAM Road Shifter Clamp Kit - 2009-2011 Vibration damping backer stripPromax QR 1 Quick Release Seatpost Clamp 31. 8mm Red. QR 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