Shimano Rotor 140mm Center Brake Disc: excellent braking powerThe pinnacle of mountain bike brakes are the SHIMANO XTR RT-MT900 brake discs, which provide excellent stopping power for the most aggressive riding. ICE TECHNOLOGIES FREEZA brake discs dissipate heat to maintain brake performance on long downhill stretches.  Shimano Rotor 140mm Center Brake DiscThe pinnacle of mountain bike brakes are the SHIMANO XTR RT-MT900 brake discs, which provide excellent stopping power for the most aggressive riding. ICE TECHNOLOGIES FREEZA brake discs dissipate heat to maintain brake performance on long downhill stretches.SHIMANO's CENTER LOCK mounting system makes mounting and dismounting brake discs quick and easy thanks to the slot-mount and locking ring design.Stable and versatile brake performance in the most demanding conditionsNew ICE TECHNOLOGIES FREEZA construction with high capacity heat dissipating paint to improve heat dissipation.Approximate weight of 88 gr.