Shimano SM-RT54 Centerlock Disc Rotor Size:180mm Their curved design at one

Their curved design at one end helps prevent tube and tyre damage whilst the other end is indented to get right under the bead of the tyre

making for greater stability and better weight distribution

A mini D-lock holster sits between the two compartments

Its unique design features an impact resistant

The mix is designed to be mixed with water with <40mg/L calcium content

Shimano SM-RT54 Centerlock Disc Rotor Size:180mm Their curved design at oneOriginal Shimano SM RT54 Center Lock disc suitable for Shimano Deore brakes. Available in the sizes: 180 and 160mm. Centerlock Disc not compatible with conventional disc rotor mount (6 holes System)! The 180mm disc requires a special adapter. Please do not exceed the disc specifications of your fork frame. Mfr Claimed Weight 141g (160mm), 164g (180mm)