Shimano GRX FC-RX600-1 Crankset - 175mm 11-Speed 40t 110 BCD Hollowtech II Spindle Interface BLK CheckoutSpec= Air Core Yes Shoe size 9

Core Yes Shoe size 9

A tread design optimized for speed with low profile knobs to aid in reducing rolling resistance combined with a new single tread rubber compound the Alluvium offers speed and grip

4 lighting modes

Same caliper mechanism as more expensive models

Compression arch support for superior fit

Shimano GRX FC-RX600-1 Crankset - 175mm 11-Speed 40t 110 BCD Hollowtech II Spindle Interface BLK CheckoutSpec= Air Core Yes Shoe size 9Shimano GRX FC RX600 1 Crankset 175mm 11 Speed 40t 110 BCD Hollowtech II Spindle Interface Black. The Shimano GRX FC RX600 crankset offers optimum gearing for mixed terrains and riding styles. TECH SPECS Color Black Rings 40 Number of Chainrings Single Crank Length (mm) 175 Crank Intended Use Gravel Drivetrain Speeds 11 Weight 816 BB Included No Pedal Spindle 9 16" Spindle Interface Type Shimano Hollowtech II Chainring BCD 110 Shimano Asymmetric