Park Tool Derailleur Hanger Alignment Gauge (DAG-3) size-750ml and you'll have a lifetime

and you'll have a lifetime of readability

Syncros Carbon/Alloy Parts

Upper: Synthetic Polyurethane

0 TRAIL 84

135 700 25c 25-622 Foldable bead Nylon 150 TPI Full Black 250g 11A

Park Tool Derailleur Hanger Alignment Gauge (DAG-3) size-750ml and you'll have a lifetimeAbout Park Tool Derailleur Hanger Alignment Gauge (DAG 3)An 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