Park Tool DAG-2 Derailleur Hanger Alignment Gauge

Product Description

An updated version of the popular DAG-1, the new DAG-2 utilises a longer measuring pointer, longer threaded stud & a longer, narrower alignment boss to fit a wider variety of bikes. The Derailleur Hanger Alignment Gauge can help solve a multitude of derailleur shifting problems, most notably with index shifting systems. This tool is extremely steady in operation & is simple to use. 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, & 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. The DAG-2 is made from heavy-gauge steel & is chrome plated for long shop life.