– Designed specifically for Shimano 12 speed HG+ chains
– Compatible with Shimano XTR M9100, XT M8100, and SLX M7100 series 12 speed cranksets
– Elliptical shape for improved power transmission
– Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention
– Prevents premature ring and chain wear that can come from non-optimized profile
– Made in the USA from 7075-T6 aluminum alloy