Promax QR-1 Seatpost Clamp - 31.8mm QR Gold MFPN=11.2018.037.000 mount (IS-QR fork/frame) 51mm caliper

mount (IS-QR fork/frame) 51mm caliper post mount 74mm rotor (front/rear) F-160mm / R-140mm

SAC-2 Carbon and Alloy Assembly Compound helps create a tighter grip between two slippery surfaces

not the rest of the system

For added cushion on inside of palm and reduced overall grip weight

Optimized 6000 series forged aluminum arms

Promax QR-1 Seatpost Clamp - 31.8mm QR Gold MFPN=11.2018.037.000 mount (IS-QR fork/frame) 51mm caliperPromax QR 1 Quick Release Seatpost Clamp 31. 8mm Gold. 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