Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge AI Larger driving cogs maximize drivetrain

Larger driving cogs maximize drivetrain efficiency and create compatibility with both SHIMANO 11 and 12-speed freehub bodies

Dual-roller design frees up the rear wheel to move naturally

All three are formulated to clean and lube at the same time when applied

The chain features Shimano’s extended inner plate design for improved chain retention and engagement with Dynamic Chain Engagement+ chainrings

preventing contamination from sticking to your chain

Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge AI Larger driving cogs maximize drivetrainThe DAG 2. 2 is an indispensable shop tool that can be used to both measure and straighten misaligned derailleur hangers solving a high percentage of shifting problems. Specifications Gauge bar made of heavy gauge, chrome plated steel Adjusts to fit 20" to 29"+ wheels Replaceable threaded tip Upgraded large inner shaft for added strength* Tighter tolerances for improved accuracy* Improved clearance and reach to fit more frame hanger combos including