Park Tool, DAG-3, Derailleur Hanger Alignment Gauge

Description

* Compatible with 16'' to 29''+ wheels (ISO/ETRTO rim sizes from 317 to 630+)* Replaceable M10 threaded tip* Low-profile head fits low clearance thru-axle derailleur hangers and Shimano Direct Mount hangers* Length: 16.5” (420mm)* Weight: 22.75 oz. (645g)