The Shimano Deore SM-CRM66 direct mount 12-speed chainring is constructed using durable steel the is sure to extend the service life. This rugged chainring features DYNAMIC CHAIN ENGAGEMENT+ special gear teeth profile that is designed for use in single-chainring configurations for XC, enduro, and trail riding to provide more chain retention and smoother pedaling – even over bumpy terrain.
- Durable steel construction extends service life
- Features DYNAMIC CHAIN ENGAGEMENT+ special gear teeth profile that is designed for use in single-chainring configurations for XC, enduro, and trail riding to provide more chain retention and smoother pedaling – even over bumpy terrain
- 3mm offset achieves 55mm chainline when used on the Deore FC-M6200 and FC-MT620 cranks (cranks sold separately)








