Promax QR-1 Quick Release Seatpost Clamp - 34.9mm Red MFPN=RHW20C421 6000 series alloy cups and

6000 series alloy cups and materials

Brake Lever Actuation Short Pull Super SLR Pad Type Cartridge Brake Position Rear Brake Mount Type Mid Reach Caliper (47mm - 57mm) Defined Color Black

Bar Clamp Diameter (mm) 22

Durable brass construction with removable valve core makes adding sealant easy

Promax QR-1 Quick Release Seatpost Clamp - 34.9mm Red MFPN=RHW20C421 6000 series alloy cups andPromax QR 1 Quick Release Seatpost Clamp 34. 9mm 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