NEW Shimano GRX FC-RX600 Crankset FC-RX600-1 172.5mm, 11-Speed, 40t, 110 rearder_12speed O-rings and the flanged bushing

O-rings and the flanged bushing design blocks out dirt and mud

The Shimano FC-M5100 crankset features an optimized gear combination and gear ratios designed for trail riding

and completely breathable

Low profile design and single tension construction keeps the derailleur body from contacting the chainstay

NEW Shimano GRX FC-RX600 Crankset FC-RX600-1 172.5mm, 11-Speed, 40t, 110 rearder_12speed O-rings and the flanged bushingThe Shimano GRX FC RX600 crankset offers optimum gearing for mixed terrains and riding styles. Rings: 40 Defined Color: Black Spindle Interface Type: Shimano Hollowtech II Chainring BCD: 110 Shimano Asymmetric Color: Black Chainline Hub Compatibility: 135 142 Road Disc Hubs > 415 mm Chainstay Drivetrain Speeds: 11 Weight: 753 Number of Chainrings: Single Crank Intended Use: Gravel Pedal Spindle: 9 16" BB Included: No Crank Length (mm): 172. 5