SHIMANO SM-RT99 Brake Disc Black/Silver Diameter 203 mm 2014 [Sports]

Ice Tech extra sm-rt99 rotors provide consistent braking performance through energy control, utilizing a revolutionary stainless steel/3-layer alloy construction that manages heat while driving the steel/alloy/steel rotor allowing heat generated by braking to radiate quickly through the aluminum core to achieve surface temperature drops of around 50 degrees Celsius. When used with Ice Tech pads, surface temperatures can drop by about 400-3°C. 0°C This offers great improvements in performance. Freezing rotors allow the alloy core to extend from the braking surface as a fin to provide additional cooling. Tech rotors achieve a long life, less noise and less discolouration due to better heat dispersion. The rotors are durable, lightweight and rigid, using the Shimano Centre-Lock system offering increased strength and safety with easy precision cutting and a drilled braking surface improving pad cleaning in muddy conditions while helping Cooling under high load Alloy Spider is a very rigid and lightweight support for the rotor surface. Super polished braking surface provides excellent braking performance. Average weight 126 g for 160 mm.