The SHIMANO FC-RX610-1 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding. By pairing a 10-45T or 10-51T cassette with 38T or 40T chainring, riders can choose closer gear steps or ultimate range depending on personal need. The FC-RX610-1 comes in 165, 170, 172.5, and 175 mm crank arm lengths, providing an additional level of customization.
Shimano GRX RX610 Crankset
Model No _ FC-RX610-1
Series _ GRX
Rear speeds _ 12
Compatible chain _ HG 12-speed
Chain line (mm) _ 49.7
P.C.D. (mm) _ 110
Spider/gear arms _ 4
Chainring combination _ 38T, 40T
Q-factor (mm) _ 151
Crank arm length (mm) _ 165 _ ✔
170 _ ✔
172.5 _ ✔
175 _ ✔
Optional chain guard _ Without chain/bash guard _ ✔
2-PIECE CRANKSET _ ✔
HOLLOWTECH crank arm _ ✔
Compatible bottom bracket type _ Outboard _ ✔
Recommended bottom bracket _
Threaded (normal) _ BB-RS501
Press-Fit _ BB-RS500-PB
Threaded bottom bracket shell width (mm) _ 68 _ ✔
70 _ ✔
Crank fixing screw included _ ✔
Average weight _ 791 (38T) 812 (40T)
Color _ Series color
-If you are not 100% satisfied with your purchase, you can return the product and we'll refund the full cost of the item minus shipping costs or exchange the product for another one, be it similar or not.
-You can return a product for up to 30 days from the date you purchased it.
-Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.