The Shimano XT SM-RT86 is a 203mm 6-bolt disc rotor built around Shimano's Ice Technology, giving you stronger heat management on long descents and heavy braking. The big 203mm diameter delivers serious stopping power for enduro, trail and gravity riding, while the aluminium-cored construction keeps the rotor cooler and lighter than an all-steel disc.

Highlights

• Large 203mm diameter for maximum braking power and control on steep, sustained descents
• Ice Technology three-layer construction runs cooler to resist brake fade
• Aluminium-cored spider trims weight without giving up rigidity
• 6-bolt fitment with supplied bolts and anti-loosen washers
• Compatible with both resin and metal (sintered) pads
• XT-level quality that suits a wide range of Shimano MTB calipers

Ice Technology that keeps its cool

The braking surface is a three-layer sandwich of stainless steel, aluminium and stainless steel. The aluminium core pulls heat out of the braking track, lowering rotor surface temperature and reducing the fade, noise and pad wear that come with heat build-up during long or repeated braking.

Light, stiff and built for abuse

A forged alloy spider supports the braking surface to add rigidity and shed weight, with the 203mm rotor coming in at 187g. The result is consistent, confident braking feel whether you are dropping into a technical descent or hauling up speed on loose terrain.

Compatibility & fit

This is a 203mm rotor with a 6-bolt mounting interface, supplied with six fixing bolts and three anti-loosen washers. It works with Shimano MTB disc brake calipers that accept a 203mm rotor and is compatible with both resin and metal (sintered) brake pads. Confirm your caliper and frame/fork are rated for a 203mm rotor and use the correct mount adaptor for that size.