• --Provides a simple, accurate means for checking hanger alignment and for straightening hangers that are not properly aligned
• --The tool threads directly into the derailleur hanger. The gauge bar holds a gauge to mark the distance to the wheel.
• --The gauge is rotated with the wheel to the 3, 6, 9, and 12 o'clock positions, noting any differences in measurements.
• --The alignment of the derailleur hanger is accomplished by applying pressure to the tool's arm. The results can be checked instantly.
• --Function: Proper alignment of a bike's derailleur hanger is important for reliable shifting. While a derailleur hanger can be bent when a bike is crashed or dropped on its side, even new frames often have misaligned hangers. Provides a simple, accurate means for checking hanger alignment and for straightening hangers that are not properly aligned.