Shimano XT SM-RT70 Center Lock disc with Shimano “ice-tech” cooling technology.
 The Shimano XT SM-RT70 disc is made with three-layer steel / aluminum / steel technology for the best performance and braking power. Perfect in combination with the SLX or 105 strada groupset.
 - “Ice-tech” rotor: cooling technology for more uniform performance
 - 3-layer stainless steel / aluminum / stainless steel sandwich structure
 - Two-piece construction for greater rigidity and weight reduction
 - Pad compatibility: resin and metallic / sintered
 - Closing ring included
 DIMENSIONS and WEIGHT (manufacturer)
 - SM-RT70 from 140 mm - 121 gr.
 - SM-RT70 S from 160 mm - 133 gr.
 - SM-RT70M 180 mm - 159 gr.
 - SM-RT70L from 203 mm - 193 gr.