Designed specifically for Shimano 12 speed HG+ chains\n CNC machined aluminum ring fits Race Face cranks with Cinch System \n Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention\n Prevents premature ring and chain wear that can come from nonoptimized profile \n Made in the USA from 7075T6 aluminum alloy
- model:
- Rayovac CR2032 battery