Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge BikeType_Urban-Hybrid densely packed knobs and is

densely packed knobs and is made with a rubber compound that guarantees grip

Actuated Hydraulic Funone Disc Brakes

Fit System:  The backside mini adjust dial is equipped to create smooth size adjustment

Standard 6 bolt disc fitting

To set your own combination follow the steps below

Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge BikeType_Urban-Hybrid densely packed knobs and isDERAILLEUR 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"+.