Is the Shimano SLX FC-M672 30t Middle Chainring Right for Your Trail Build?

The Shimano SLX FC-M672 30t is the middle chainring for SLX-generation 3x10 cranksets, designed as part of the 22-30-40t triple configuration used on trail-oriented all-mountain builds where maximum gear range is the priority. Built from aluminum at a 96mm BCD bolt pattern, the 30t middle ring serves as the primary chainring for most riding conditions, with the 22t inner handling the steepest technical climbs and the 40t outer available for fast descents and fire road sections. Shimano Dyna-Sys shift ramps and guide pins are built into the ring for smooth, reliable front shifting across the full drivetrain range.

Compatible with Shimano SLX FC-M675, FC-M672, FC-M670, and FC-M665 cranksets running 10-speed MTB drivetrains. 96mm BCD, 4-bolt mount, black finish. Sold as a single middle chainring. The 22t inner and 40t outer rings are available separately for building out or replacing the complete triple setup.