Shimano Deore XT SM-RT86-M2 - 180mm | 6-Bolt

Why Do XT Riders Choose the Shimano SM-RT86 180mm Rotor?

The Shimano Deore XT SM-RT86 is a 180mm 6-bolt disc brake rotor built on ICE TECHNOLOGIES, Shimano's three-layer stainless-aluminum-stainless sandwich construction that significantly reduces brake system heat buildup compared to standard single-layer stainless steel rotors. ICE TECHNOLOGIES absorbs and dissipates heat more efficiently through the aluminum core layer, translating into more consistent braking performance on sustained descents where heat accumulation is the primary cause of brake fade. The 6-bolt interface provides universal compatibility with ISO 6-bolt hubs, making the SM-RT86 straightforward to spec across a wide range of wheel builds.

At 180mm, the SM-RT86 provides more stopping power and heat capacity than 160mm rotors, making it a strong choice as a front rotor on trail setups or front and rear on enduro and gravity builds where braking demand is high. The 6-bolt mounting requires standard T25 rotor bolts and works with all ISO 6-bolt compatible hubs. Compatible with Shimano Deore XT M8000 and T8000 hydraulic disc brake systems, and cross-compatible with other Shimano MTB caliper families. Each rotor ships individually. For riders who want Shimano's mid-tier ICE TECHNOLOGIES heat management in a 6-bolt 180mm format, the SM-RT86 is the correct XT-tier choice.