SHIMANO 36T-MB DURA-ACE Chainring

The Shimano DURA-ACE 36D-MB chainring is a replacement inner chainring designed for the Shimano FC-9000 2 × 11-speed road crankset. With 36 teeth and a 110 mm BCD, it is used exclusively with an asymmetrical four-arm spider and forms the MB combination with a 52-tooth outer chainring.

Its hollow forged aluminum construction helps reduce weight while maintaining a rigid structure. The tooth profile is optimized to support the Dura-Ace drivetrain's operation and ensure smooth chainring shifts in the 52/36 configuration.

This chainring is intended for road bikes and must be installed on a compatible FC-9000 crankset. It is not suitable for newer Shimano cranksets that use a similar four-arm mounting but a different chainring geometry.