Shimano Center Lock SM-RT800 Ice-Tech Freeza Brake DiscShimano Ultegra SM-RT800 brake discs provide the best braking quality and unique temperature control thanks to the 3-layer Ice-Tech technology. Shimano Center Lock SM-RT800 Ice-Tech Freeza Brake DiscShimano Ultegra SM-RT800 brake discs provide the best braking quality and unique temperature control thanks to the 3-layer Ice-Tech technology.Features:- Shimano Ultegra R8000 brake disc for road bike.- Provides better braking quality and temperature control.- 3-layer panel.- Diameter: 160 mm. / 140 mm.- Fixation: Center Lock.- Technology: Ice Tech.Reference code: ISMRT800S