Park Tool - DAG-3 - Derailleur Hanger Alignment Gauge Stock Item:Park Tool Derailleur Hanger Alignment Gauge reducing the risk of micro-scratching

reducing the risk of micro-scratching paintwork and corrosion

PROFILE DESIGN – HSF/AEROFLOW HYDRATION SYSTEM

2x 104/64mm bcd (Boost spider available)

Air pressure compensation valve

Presta Valve Rims Specialized Alloy

Park Tool - DAG-3 - Derailleur Hanger Alignment Gauge Stock Item:Park Tool Derailleur Hanger Alignment Gauge reducing the risk of micro-scratchingPARK TOOL DAG 3 DERAILLEUR HANGER ALIGNMENT GAUGE 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