Take your bike maintenance to the next level with the BINGOX Derailleur Hanger Alignment Tool, designed for precise rear derailleur adjustments on all 20"–29" wheels. Whether you're riding trails or tarmac, a bent derailleur hanger can ruin your ride. Our alignment gauge allows you to quickly measure and correct misaligned hangers, restoring accurate shifting and drivetrain performance. Constructed from solid 304 stainless steel, this tool resists rust, flex, and wear. The extended inner shaft and ball plunger locking system ensure stability while rotating the arm a full 360° around the wheel. Compatible with: MTB, road bikes, e-bikes, fat tire bikes Specialized, Trek, Giant, Cannondale, Cube Reaction frames Bike mechanics and home workshops Use with other tools like bike handlebar alignment tools, chain alignment tools, wheel truing stands, and sprocket alignment tools Don't risk another ride with poor shifting—align it right with BINGOX.