Shimano SLX RT70 Ice Tech Disc Brake Rotor Centerlock per pc Size:140mm Small Lock Ring tubulars and inner tubes REDUCE FATIGUE Stop wasting tubulars and inner tubes Weight 135 g Material Polypropylene Colors Blue Black Red Cap Pro Cap Insulated bag Outside: metallic PET and polyethylene foam Inside: white PE Insulation 2h30 Maximum temperature 80°C 176°F No BPA or other toxins Yes Cap material Polypropylene SHIMANO's CENTER LOCK mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design CENTER LOCK ✔ Outside diameter_140 mm ✔ Outside diameter_160 mm ✔ Outside diameter_180 mm ✔ Outside diameter_203 mm ✔ Pad material compatibility_Metal ✔ Pad material compatibility_Resin ✔ Pad lining shape compatibility_Narrow ✔