Park Tool DAG-3 Derailleur Hanger Alignment Gauge ZIPPMARCH The magic starts in the

The magic starts in the center tread

Available with 165

193g (11-28T)

For frames with Pressfit30 bottom bracket shell

Single Use Only: Non re-usable

Park Tool DAG-3 Derailleur Hanger Alignment Gauge ZIPPMARCH The magic starts in theAn alignment gauge is essential for diagnosing and repairing bent or misaligned derailleur hangers, often the source of shifting problems. The DAG 3 features an all new design, engineered and built to be light, accurate and versatile. The sliding indicator can measure derailleur hanger alignment against bicycle rims of any size, and rotates out of the way to clear seat stays, racks, and other obstacles, allowing 360 degree measurement. The long,