Protects & strengthens Specialized MTB replaceable dropouts.> Protects the dropout from side impact bending > Strengthens interface between derailleur & frame > Fits all bike models using the following derailleur hanger models:&8226;9894-4205 &40;dealer model&41; / -4206 &40;consumer model&41;&8226;9895-4020 &40;dealer model&41;/ -4021 &40;consumer model&41; > Weight: 50g