Park Tool DAG-3 Derailleur Hanger Alignment Gauge Advance incorporated aspects from the aerospace

incorporated aspects from the aerospace industry and reworked the design to create a premium top wheel

Hardwearing scratch-resistant lens coating enhancing durability

Fitment: All braze-on mounted front derailleurs*

Default Function: AXS - Rear Derailleur

Pad Shape: Narrow

Park Tool DAG-3 Derailleur Hanger Alignment Gauge Advance incorporated aspects from the aerospaceAn 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,