Park Tool DAG-3 Derailleur Hanger Alignment Gauge

The latest updated version of the Park Derailleur Alignment Gauge

 

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Improvements over the DAG-2.2

• Gauge bar made of heavy gauge, Aluminium Alloy
• Compatible with 16" to 29"+ wheels (ISO/ETRTO rim sizes from 317 to 630+)
• Length: 16.5” (420mm)
• Replaceable threaded tip
• Tighter tolerances for improved accuracy*
• Low-profile head fits low clearance thru-axle derailleur hangers and Shimano Direct Mount hangers

This is the NEW DAG-3, It is an indispensable shop tool that can be used to both measure and straighten misaligned derailleur hangers, solving noisy drive trains and a high percentage of shifting problems.