
Description
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, it’s as lightweight as it is tough.
About PROMAX
Promax develops bicycle components across BMX and other cycling disciplines, with a range covering cockpit, braking, drivetrain and control parts. The brand’s BMX presence is particularly visible in race-oriented products such as brakes, stems, seat clamps, chainrings and related hardware, where low weight, adjustment and reliable fit are important. Promax approaches the bicycle as a system of functional components rather than building its identity around one narrow product category. That...
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