Promax QR-1 Seatpost Clamp - 31.8mm, QR, Silver Decals and Stickers Manufacturer Part Number: DROPOUT-421

Manufacturer Part Number: DROPOUT-421

UPC: 811079022851

UPC: 710845412417

158997-Q0-L

Manufacturer Part Number: SP21-SP764316-BK

Promax QR-1 Seatpost Clamp - 31.8mm, QR, Silver Decals and Stickers Manufacturer Part Number: DROPOUT-421QR 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