The SHIMANO XTR FC-M9120-B2 crank features an entirely new construction, using direct mount chainrings, special gear tooth profile for improved chain retention, and a narrow 182mm Q-factor. The FC-M9120-B2 uses a 51.8mm chain line and can be converted between 1x and 2x, with 38-28T chainrings available. On offer are 165, 170, and 175mm crank arms.

• Front double
• Combine wide range and close gear steps
• Alloy inner chainring is installed with outer chainring by bolts
• Faster acceleration
• New drive system
• Smoother driving even over bumpy terrain
• Special gear teeth profile designed for MTB riding usage
• Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release
• Exchangeable of single and double chainring by direct mount
• Crankset can be used as common component
• Q-factor: 168 mm
• Chainline: 51.8 mm