Park Tool DAG-3 Derailleur Hanger Alignment Gauge MFPN=11654217 Rinse well after using soap

Rinse well after using soap or bleach to clean

A clog-resistance function is achieved by 1) oversizing the valve bore near the internal rim rubber seal and 2) the machined extension of the valve past the seal

Cutout in the base to provide extra perineum comfort

Elastic jersey at back of knee provides great ventilation and freedom of movement

Park Tool DAG-3 Derailleur Hanger Alignment Gauge MFPN=11654217 Rinse well after using soapPark Tool Derailleur Alignment Gauge and straighenner for keeping drive train in correct alignment. Model Derailleur Hanger Alignment Gauge DAG 3 Description Derailleur Hanger Alignment Gauge Color Black