Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Nylon These spacers are made from

These spacers are made from strong lightweight plastic polymer

246” diameter shafts

987" in length

Tool Type: special tool

Extra-long sleeve that folds over the brace and prevents slipping

Park Tool DAG-2.2 Derailleur Hanger Alignment Gauge Nylon These spacers are made fromQuit fiddling with your rear derailleur's barrel adjuster and address the issue of sloppy shifting at its source. Park Tool's DAG 2. 2 Derailleur Alignment Gauge helps the home mechanic identify and correct a bent derailleur hanger, and compared to the DAG 2 model it features a stronger shaft, tighter tolerances, and improved clearance and reach. The sliding arm encompasses wheels from 20 to 29in.