Bike Tail Hook Calibration Tools Derailleur Hanger Alignment Gauge for Mountain Bicyclered

Feature: 1. Adopting quality structure and telescopic measurement, more convenient and quick, lightweight and compact size. 2. Indispensable tool, can be used to both measure and straighten misaligned derailleur hangers solving a high percentage of shifting problems. Most notably with index shifting systems. 3. The tool threads directly into the derailleur hanger. The gauge bar holds a gauge which marks the distance to the wheel. The gauge then is rotated with the wheel to the 3, 6, 9, and 12 o"clock positions, noting any differences in measurements. 4. The alignment of the derailleur hanger is accomplished by applying pressure to the tool"s arm. The results can be checked instantly. 5. 2 different colors for you to choose, meet your different needs. Specification: Condition: 100percent Brand New Item Type: Derailleur Hanger Alignment Gauge Material: aluminium alloy Optional Color: black, red Weight: Approx. 467gSuitable range: 2627.529700C. Package List: 1 x Derailleur Hanger Alignment GaugeAdopting quality structure and telescopic measurement, more convenient and quick, lightweight and compact size. Indispensable tool, can be used to both measure and straighten misaligned derailleur hangers solving a high percentage of shifting problems. Most notably with index shifting systems. The tool threads directly into the derailleur hanger. The gauge bar holds a gauge which marks the distance to the wheel. The gauge then 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. 2 different colors for you to choose, meet your different needs.