The SM-RT66 is an affordable Shimano 6-bolt brake rotor available in diameters from 160 to 220 mm. It is made of stainless steel, has a one-piece design and is compatible with organic as well as sintered pads. The brake rotor is recommended for ZEE, Deore and Alfine, but can also be used with other brakes. The mounting material is included in the scope of delivery.