Ice Tech has been a must have Shimano s must have technology over the past few years and now the benefits can truly be felt by all with the new SM-RT70 Ice Tech Centre Lock Disc Rotor bringing this awesome technology down to a more affordable price point than ever. Ice Tech improves heat dissipation from your brake rotors, keeping them cool under extreme use which leads to less brake fade and better performance. It also improves brake pad life and reduces the dreaded howling brake noise that can plague other rotors when they get too hot. Available in a range of sizes and using Shimano s Centre Lock mounting system, the SM RT70 Ice Tech Rotor is a great choice for those looking to improve the performance of their brakes.Shimano s new, affordable Ice Tech brake rotorSteel / alloy construction gives greater heat dissipation, reducing heat build-up in brakesImproves braking performance under extreme conditionsImproves pad life, reduces noise and fades lessCentre lock mounting Lockring in