Front Chainwheel, FC-RX820-2, GRX, For Rear 12-Speed, Hollowtech 2, 172.5mm, 48-31T

The SHIMANO FC-RX820-2 balances weight savings and optimal efficiency for mixed-terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch

• Gravel-optimized 48-31t gear combination ratios preserve riding rhythm on rough surfaces
  
• The 17t range covers an array of riding conditions
  
• Smaller gear steps for cadence control on mixed-terrain riding
  
• Hollowtech II crank arms provide strength and stiffness with the benefit of weight savings
  
• Compatible with HG 12-speed chains
  
• 47mm chainline
  
• 151mm Q-factor
  
• Number of Chainrings: Double
  
• Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
  
• Pedal Spindle: 9/16"
  
• Crank Intended Use: Gravel
  
• Rings: 48/31T
  
• Spindle Interface Type: Shimano Hollowtech II
  
• Drivetrain Speeds: 12
  
• Chainring BCD: 110 Shimano Asymmetric, 80 Shimano Asymmetric
  
• BB Included: No
  
• Weight: 710g.
  
• Color: Black

IFCRX8202DX81