Promax QR-1 Seatpost Clamp - 31.8mm QR Gold MPFN-3927800 Compatible with Shimano mountain 11-speed

Compatible with Shimano mountain 11-speed derailleurs XLE Xpress+ shifters are jam-packed with bearings for slick shifting action

Ring Position/Type Chain Retaining Single RingTooth Count 44Drivetrain Speeds 12Round or Oval RoundChainring BCD 110 Shimano AsymmetricMaterial AluminumColor BlackDefined Color Black

} See Tools for BB30 bottom bracket service tools

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Tire Weight 225g Bead Folding e-Bike approved No Tire Compound SmartEVO Tire Width 28C Tire Width Range 18 - 29 Tire Diameter/ISO 700C/622 Tire Technology TechBELT Labeled Size 700x28C Primary Color Green Tire Type Clincher TPI 127TPI

Promax QR-1 Seatpost Clamp - 31.8mm QR Gold MPFN-3927800 Compatible with Shimano mountain 11-speedPromax QR 1 Quick Release Seatpost Clamp 31. 8mm Gold. 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 action