The SHIMANO DEORE FC-M6100-1 crank features an entirely new construction, using direct mount chainrings, special gear tooth profile for improved chain retention, and a 172 mm Q-factor that is compatible with 142 mm or 148 mm O.L.D. frames.

• Superior chain retention for smoother riding even over rough terrain
• DYNAMIC CHAIN ENGAGEMENT+ improves chain engagement and retention
• Direct mount chainring