An MTB rider maintaining or restoring a compatible SRAM X0/XO 2×10 drivetrain who needs a 38T outer chainring with a 104 mm BCD.
The Stronglight 104/64 – 2X10 is a 38T outer chainring for MTB cranksets using a 104 mm BCD and four-arm bolt pattern. It is designed around 2×10 drivetrain configurations, making it a practical choice when replacing a worn outer ring while retaining your existing crankset arrangement.
Stronglight uses 7075-T6 material for a strong, performance-focused component, then CNC-machines the ring for a precisely formed tooth profile. That accurate construction supports dependable shifting performance and a clean fit on compatible cranksets.
Choose this chainring when you need a black outer ring for a compatible SRAM X0/XO 2×10 setup. Before ordering, check your crankset’s BCD, four-arm interface, outer-ring position and drivetrain configuration to ensure the replacement matches your current hardware.
38T outer ring
The selected tooth count is suited to the outer position of the specified 2×10 MTB drivetrain configuration.
104 mm BCD
Designed for cranksets using the 104 mm bolt-circle diameter.
Four-arm bolt pattern
The four-arm interface provides the required mounting layout for compatible cranksets.
7075-T6 construction
This strong aluminium alloy provides a performance-focused foundation for MTB drivetrain use.
CNC-machined profile
Precise machining forms the chainring profile accurately for fit and dependable shifting.
SRAM X0/XO compatibility
Published compatibility covers SRAM X0/XO systems using the 104 mm BCD configuration.
Black finish
The black finish provides a clean, understated look that suits a wide range of MTB builds.
General
Materials & construction
Dimensions & tooth options
Compatibility
7075-T6 construction
The chainring uses 7075-T6 material to deliver a strong, performance-focused component for MTB drivetrains.
CNC machining
CNC machining produces a precisely formed chainring profile for accurate fit and dependable shifting performance.
