Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge

• Best tool for fixing and dialing in problematic rear shifting
• 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*
• Fits Shimano®Type Direct Mount hangers, todays standard (the overwhelming majority)
  

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.