The thule 545 2 wheel carrier is for the front wheel with regular axle or wheels with disc brakes fits up to 29 wheels thule 545 2 wheel carrier features the perfect accessory for thule outride 561 possible to fold down towards the roof when not in use t track adapters 20x20mm are included for mounting on thule wingbar edge thule wingbar thule slidebar and thule aerobar fits up to 29 wheels