Park Tool Derailleur Alignment Gauge and straighenner for keeping drive train in correct alignment.
- 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*