Shimano Sm-Rt54

Brake disc with central locking and external teeth. There is a choice of two disc sizes: 160 and 180mm. The discs are fixed to the hub by the light and above all easy-to-use Shimano Center Lock system. Centre Lock brake disc mount - not compatible with conventional 6-hole mounts. Please note that an adapter is required to use the 180mm disc. Please also note the max. permissible disc diameter of your suspension fork/frame. for resin pads only.