Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Brand_Aeroic and E-BIKES thanks to its

and E-BIKES thanks to its reinforced design

With numerous race wins under its belt and untold miles of backroad adventures

better puncture resistance while retaining the superb balance of a light riding feel and grip

E-Bike: √(ANT+)

Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Brand_Aeroic and E-BIKES thanks to itsDERAILLEUR HANGER ALIGNMENT GAUGE A misaligned derailleur hanger can cause skipping, missed shifts, and wreak general havoc on your bicycle's drivetrain. The DAG 2. 2 is an indispensable shop tool that can be used to both measure and straighten misaligned derailleur hangers, diagnosing and solving many shifting problems. Compatible with virtually all derailleur equipped bicycles, and adjusts to work with wheels from 16" to 29"+.