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Park Tool DAG-2 Derailleur Hanger Alignment GaugeAn updated version of the popular DAG-1, the new Park Tool DAG-2 Derailleur Hanger Alignment Gauge utilizes a longer measuring pointer, longer threaded stud and a longer, narrower alignment boss to fit a wider variety of bikes.
- Solves a multitude of derailleur shifting problems, most notably with index shifting systems
- Extremely steady in operation and simple to use
- Threads directly into the derailleur hanger
- Gauge bar holds a gauge which marks the distance to the wheel
- Gauge then is rotated with the wheel to the 3, 6, 9, and 12 o'clock positions, noting any differences in measurements
- Alignment of the derailleur hanger is accomplished by applying pressure to the tool's arm - the results can be checked instantly
- Made with heavy gauge steel and chrome plated for long shop life
Park Tool DAG-2 Derailleur Hanger Alignment Gauge