Shimano GRX FC-RX820-2 Crankset - 172.5mm 12-Speed 48/31t Asymmetric 110/80 BCD Hollowtech II BLK MPFN-6-BIT-PRP }Shimano Ultegra FC-R8100 Crankset -

}Shimano Ultegra FC-R8100 Crankset - 175mm 12-Speed 52/36t Hollowtech II Spindle Interface Black

3" Requires Eyelets Yes Tube Diameter 10 Weight Limit (lbs) 59

Tool-free Reach Adjust Designed for the most heavy-duty braking needs Metallic pads come standard for more power and longer wear Utilizes SwingLink for a fatigue-free ride

S1 Rustbuster is a basic affordable replacement 1/8" chain

5+ 15 x 110 mm Boost Spacing Diffusion Black

Shimano GRX FC-RX820-2 Crankset - 172.5mm 12-Speed 48/31t Asymmetric 110/80 BCD Hollowtech II BLK MPFN-6-BIT-PRP }Shimano Ultegra FC-R8100 Crankset -Shimano GRX FC RX820 2 Crankset 172. 5mm 12 Speed 48 31t 110 80 BCD Hollowtech II Black. The Shimano FC RX820 crank balances weight savings optimized efficiency and an array of gearing options that cater to the segmented demands of mixed terrain riding. TECH SPECS Color Black Rings 48 31 Number of Chainrings Double Crank Length (mm) 172. 5 Crank Intended Use Gravel Drivetrain Speeds 12 Weight 710 BB Included No Pedal Spindle 9 16" Spindle Interface