Park Tool Derailleur Hanger Alignment Gauge

The 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. - 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 low clearance thru-axle derailleur hangers* *Compared to DAG-2