SLX SM-CRM75 stiff and lightweight chainring delivers smooth pedaling over bumpy terrain. The SM-CRM75 chainring features SHIMANO DYNAMIC CHAIN ENGAGEMENT+ technology, which features special gear teeth profiles that deliver exceptional chain engagement and chain retention. - Special MTB gear teeth profile improves chain engagement and retention - Exchangeable single/double chainring - Crankset can be used as common component - Superior chain retention - Rider tunable

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - OEM 39t chainring for Ultegra FC-6700-G and FC-6601-G (grey) cranksets

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.