Promax QR-1 Seatpost Clamp - 31.8mm QR Silver MPFN-TRTT-1B Tubes and tubulars can continue

Tubes and tubulars can continue to be used normally after application

} Replacement MKII damper subassemby

Presta valve only

Defined Color Black PSI 60 TPI 60 Weight 610 Tire Type Tubeless Ready Clincher Tire Intended Use Road Tire Intended Use Gravel Color Black Tire Diameter 27

Unisex fit

Promax QR-1 Seatpost Clamp - 31.8mm QR Silver MPFN-TRTT-1B Tubes and tubulars can continuePromax QR 1 Quick Release Seatpost Clamp 31. 8mm Silver. 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