Park Tool Derailleur Hanger Alignment Gauge DAG-3 Size:NONE Newly upgraded with a tougher

Newly upgraded with a tougher

- Designed for road use

You've paid for full suspension

Tow ball mounted

44") in diameter and are on 4-inch centers (100

Park Tool Derailleur Hanger Alignment Gauge DAG-3 Size:NONE Newly upgraded with a tougherAn 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,