Promax QR-1 Seatpost Clamp - 34.9mm, QR, Silver BMX Cranksets 529g pair (9/16`)

529g pair (9/16`)

UPC: 810124712969

and repels water and grime

UPC: 840031600202

- For steel axles (black) - HG 8-11 FHB use BI4690 drive side end cap

Promax QR-1 Seatpost Clamp - 34.9mm, QR, Silver BMX Cranksets 529g pair (9/16`)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 for the life of the clamp without the need for a