Park Tool Derailleur Alignment Gauge
Park Tool -
Park Tool Derailleur Alignment Gauge and straighenner for keeping drive train in correct alignment. Park Tool DAG-2.2 Derailleur Alignment Gauge 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* Park Tool DAG-3 Derailleur Hanger Alignment Gauge 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) Park Tool O-Ring AS568-008 DAG1,2,2.2 Replacement O-ring fits: DAG-1, DAG-2, and DAG-2.2