SUPER B Frame/Derailleur Dropout Alignment Tool for 20/29 Wheels

For measuring bent derailleur hangers Alignment Tool for derailleur hanger Correct alignment of bent derailleur hangers Rotates the gauge with the wheel to the 3, 6, 9, and 12 o'clock positions to check potential differences in measurements Rotates the gauge with the wheel to the 3, 6, 9, and 12 o’clock positions to check potential differences in measurements Rotates the gauge with the wheel to the 3, 6, 9 and 12 o'clock positions to check potential differences in measurements Apply pressure to the tool's arm to the derailleur hanger to check the results instantly