The Shimano FC-RX610 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding.

• Riders can choose closer gear steps or ultimate range depending on personal need by pairing a 10-45t or 10-51t cassette with 38t or 40t chainring (cassettes and 38t chainring sold separately)
• Optimal gearing for mixed-terrain riding
• Compatible with HG 12-speed chains
• 49.7mm chainline
• 151mm Q-factor
• The Shimano FC-RX610 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding.
  • Riders can choose closer gear steps or ultimate range depending on personal need by pairing a 10-45t or 10-51t cassette with 38t or 40t chainring (cassettes and 38t chainring sold separately)
  • Optimal gearing for mixed-terrain riding
  • Compatible with HG 12-speed chains
  • 49.7mm chainline
  • 151mm Q-factor

  Item Specifications
  BB Included	No
  Chainline/Hub Compatibility	135/142 Road Disc Hubs > 415 mm Chainstay
  Chainring BCD	110 Shimano Asymmetric
  Color	Black
  Crank Intended Use	Gravel
  Crank Length (mm)	170
  Defined Color	Black
  Drivetrain Speeds	12
  Number of Chainrings	Single
  Pedal Spindle	9/16"
  Rings	40
  Spindle Interface Type	Shimano Hollowtech II
  Weight	812