Shimano RT-CL900 Ice Tech FREEZA rotor with external lockring, 203 mm full brake systems Equipped with a centerlock mount

Equipped with a centerlock mount for corresponding hub

so you can load up on water or attach a convenient folding lock

while the side walls and rear wall can be rolled up in warmer weather

For use with mineral oil which is non-corrosive and less hazardous than conventional hydraulic fluid

Shimano RT-CL900 Ice Tech FREEZA rotor with external lockring, 203 mm full brake systems Equipped with a centerlock mountSpecifications: XTR Dura Ace level RT CL900 Ice Tech rotors providing consistent braking performance through energy control, using revolutionary stainless steel alloy 3 layer sandwich construction that manages heat while riding The clad steel alloy steel rotor construction allows heat generated from braking to radiate quickly through the aluminium core achieving surface temperature drops of around 50 deg C. When used with Ice Tech pads surface