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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)
| Tooth Count | 30 |
| Drivetrain Speeds | 12 |
| Round or Oval | Round |
| Offset | 3 |
| Material | Steel |
| Color | Black |
| Defined Color | Black |
| Direct Mount Type | Direct Mount Shimano |
| Title | Default Title |