Shimano / GRX

Shimano GRX FC-RX610 Crankset - 1x12-speed

Description

Shimano GRX FC-RX610 Crankset - 1x12-speed


Shimano GRX – United in Gravel

Gravel is the great equalizer. No matter who you are, where you come from or where you want to go. Gravel celebrates individuality. It welds together in a shared passion. It lays the foundation for friendships and creates memories for the ages. Whether you ride one kilometer or a hundred. Whether with professional equipment or without. With a 10-speed, 11-speed or 12-speed gear system. Whether on paved roads, forest roads, back roads – or no roads at all. It does not matter why you are out there, all that matters is that you are.

Shimano GRX FC-RX610-1 crankset

Gravel for Everyone. The two-piece Shimano GRX FC-RX610 crank combines low weight with improved efficiency to always cut a fine figure in mixed terrain. To meet the different requirements of Gravel riding, the crankset for 1x12-speed drivetrain systems offers a range of gear ratio options. Be it a tighter gear gradation or maximum bandwidth, two different chainring sizes (38 or 40 teeth) and the choice between a cassette with 10-45 or 10-51 teeth (CS-M7100-12, sold separately) makes it possible to serve the individual needs of the most diverse types of riders.

Material:
crank arms: aluminum (Hollowtech, anodized)
chainrings: steel (painted)
axle: steel (plated)

Compatibility:

  • rear derailleur: RD-RX822, RD-RX820
  • cassette: CS-M7100, CS-R7101, CS-HG710
  • chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
  • bottom bracket (thread type): BB-RS501, BB-RS500, BB-R9100, SM-BB9000, SM-BBR60, SM-BB6700, SM-BB5700, SM-BB4600
  • bottom bracket (Press Fit): BB-RS500-PB, SM-BB92-41B, SM-BB72-41B, SM-BB71-41B

(manufacturer recommendations, list not exhaustive)

Weight (manufacturer's specification):
approx. 791 g (170 mm, 38 teeth)
approx. 812 g (170 mm, 40 teeth)

Scope of supply:
crankset (without BB cups)

Shimano Parts
Fact Sheet
Product Name: Shimano GRX FC-RX610 Crankset - 1x12-speed
Manufacturer: Shimano Parts
Item Code: SHI640609
activity: Cycling
material: Aluminium
usage bikesport: Cyclocross, Allroad / Gravel
Number of gears - front: 1
Number of Gears - rear: 12
bottom bracket axle profile: 24mm Hollow Shaft
bottom bracket case width: 68 mm, 70 mm
Chainring version: Narrow-Wide, round
chainring mount: conventional
chain line: 49.7mm
Q-factor: 151 mm
Model year: 2026
Color: Black
weight: 791g
manufacturer item code: EFCRX6101AXA8 / EFCRX6101CXA8 / EFCRX6101DXA8 / EFCRX6101EXA8 (38T)
EFCRX6101AXB0 / EFCRX6101CXB0 / EFCRX6101DXB0 / EFCRX6101EXB0 (40T)
Weight Source: Manufacturer
Weighed Version: 170mm | 38T
Product Series: Shimano - GRX
Bolt Circle Diameter: 110 mm
crank arm length: 165 mm, 170 mm, 172.5 mm, 175 mm
number of teeth: 38, 40
GTINs: 4550170639655, 4550170639624, 4550170639679, 4550170639648, 4550170639709, 4550170639716, 4550170639730, 4550170639686, 4550170764975, 4550170764845
Manufacturer page: http://www.shimano-europe.com/
Availability
Ratings (3)
Manufacturer

Shimano

All products from Shimano
Shimano Europe B.V.
High Tech Campus 92
5656 AG Eindhoven
Netherlands
contactshimano@shimano-eu.com
https://www.shimano.com

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