QWORK® Bicycle Derailleur Hanger Alignment Tool Aluminum Alloy Noise Reduction and Precise Gear Shift Adjustment for Mountain Bikes

The main body and the sliding sleeve are made of solid aluminum alloy, which is strong in hardness and light in weight; the surface is anodized, anti-rust, wear-resistant and beautiful. The measuring rod is made of stainless steel with a clear scale; the contact with the rim is covered with rubber to avoid scratching the rim. The measuring rod can be slide freely on the main body and, with its adjustable design, can reach any position of the bike rim. The tool can effectively fix or maintain precision gear shifts. It eliminates the annoying the annoying ticking, clicking, and knocking sounds of the rear derailleur. Package Size: 43 x 16.5 x 3.5 cm / 17 x 6.5 x 1.4 inch. Weight: 405g / 0.9lb.