Shimano RT-MT800 Steps Disc Rotor with Lockring and Magnet Ice Tech FREEZA CentreLock 203mm Silver/Black

The Shimano RT-MT800 Steps Rotor with Lockring and Magnet is built with an in speed sensor magnet providing consistent braking performance through energy control. It uses 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 temperatures can drop from around 400 to 300 deg C, this provides great improvements in performance all round. Ice Tech rotors achieve long pad life, less noise and less fade due to improved heat dispersion. With internal lockring housing the magnet necessary for speed sensor function on Shimano STEPS equipped E-bikes allowing frame clearance for wider tyres.Shimano RT-MT800 Steps Rotor with Lockring and Magnet FeaturesDurable lightweight and rigid, using the proven Shimano Center Lock system giving increased strength and security with an easy set-upPrecision cut and drilled braking surface improves pad clearing in muddy conditions while aiding cooling under high loadLarge alloy spider is a highly rigid and lightweight support for the rotor surfaceSuper polished braking surface gives excellent braking performance