Elegant and secure direct-mount X-SYNC chainrings from the company that originated the 1x drivetrain for the ultimate in consistent chain control over the long haul.

Installation. Service. Compatibility. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub.

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Features
  • Direct mount chainrings in 38T through 46T
  • DUB bottom bracket adds durability and simplicity
  • Wide chainline crankset to fit the biggest gravel tires
  • Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands
  • Compatible with 135, 142 and BOOST rear spacing

Specifications

Crank arm length 160mm, 165mm, 170mm, 172.5mm, 175mm
BB Spindle Interface DUB
BB Compatibility All SRAM Road WIDE DUB BBs
Speeds 12
Chainring material Aluminum
Bolt Circle Diameter (BCD) Direct Mount (DM)
Chainline 47.5mm
Chainring Size 40T, 46T
SKU SRM-FC-RIV-1W-D1
Model # FC-RIV-1W-D1
Barcode # FC-RIV-1W-D1
Brand SRAM

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