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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 (31.8 size), it’s 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 bushing. Laser-etched graphics and stainless steel hardware put the finishing touches on this snazzy seat collar.
Reviewed by 1 customer
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Comments about Promax QR-1 Seat Post Clamp:
the product does what it should and does not allow the seat post to slip. the price is good but the red one I ordered is shown as having a black lever, but the lever and clamp are both red. be advised you may not get a two tone clamp with a black lever if you order the red clamp.