Shimano’s XT Brake Rotor, the SM-RT86, sets itself aside from Shimano’s lower-tier offerings thru its use of an aluminum core to transfer warmth away from the brake caliper. This, combined with the finned warmth sinks in Shimano’s XT and XTR-level brake pads, combats warmth-related brake fade. What that implies in path terms is consistent, reliable braking, even on long, technical descents.
Subject material: steel, aluminum
Attachment Kind: 6-bolt
Diameter: 160 mm 180 mm, 203 mm
Advisable Use: mountain motorcycle
Manufacturer Guaranty: 2 years