Promax QR-1 Quick Release Seatpost Clamp 34.9mm Silver Size:34.9mm These shapes are tubes we’ve

These shapes are tubes we’ve used on other models that we know to have various qualities—aerodynamic

Our original Radar® eyewear combined everything we learned from decades of research with the world’s best athletes

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Promax QR-1 Quick Release Seatpost Clamp 34.9mm Silver Size:34.9mm These shapes are tubes we’veQR 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