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Promax QR-1 Quick Release Seatpost Clamp - 31.8mm Black. 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.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
- TECH SPECS
| Color | Black |
| Defined Color | Black |
| Diameter | 31.8 |
| Material | Aluminum |
| Type | Quick Release |