Promax QR-1 Seatpost Clamp - 34.9mm QR Silver Weight-114 Color Black Brake Track None

Color Black Brake Track None Wheel Size 29" Defined Color Black ISO Diameter 622 / Road / 29" Hub Drilling 32 Rim Material Carbon Tire Type Tubeless Ready Valve Presta

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Promax QR-1 Seatpost Clamp - 34.9mm QR Silver Weight-114 Color Black Brake Track NonePromax QR 1 Quick Release Seatpost Clamp 34. 9mm 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