Promax QR-1 Seatpost Clamp - 31.8mm, QR, Gold Cassettes UPC: 821973491929

UPC: 821973491929

- Includes special tubeless air valves that allow air to move through the valve without becoming obstructed by the insert

UPC: 710845847516

Manufacturer Part Number: 925-01-329

4 AR is the ultimate all-road wheel

Promax QR-1 Seatpost Clamp - 31.8mm, QR, Gold Cassettes UPC: 821973491929QR 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