RaceFace Narrow Wide Bicycle Chainrings

This 104 BCD narrow-wide chainring is designed for 1x drivetrains, providing improved chain retention and reliable performance for mountain biking and aggressive trail riding.

Best for

• Mountain bikers converting to or running a 1x drivetrain.
• Trail, enduro, downhill, and cross-country riders.
• Cyclists looking to improve chain retention without adding complexity.
• Riders using compatible 104 BCD 4-bolt cranksets.

Not ideal for

• Bikes with non-104 BCD cranksets.
• Road cranksets using different bolt circle diameters.
• Multi-chainring (2x or 3x) setups requiring front derailleur shifting.
• Riders seeking a direct-mount chainring.

What this product does

The chainring uses alternating narrow-wide tooth profiling to better engage the chain and help prevent chain drops during rough terrain, jumps, and technical riding. Its stiff 7075-T6 aluminum construction provides efficient power transfer while maintaining durability for demanding riding conditions.

Compatibility

• Compatible with 104 BCD 4-bolt cranksets.
• Designed for 1x drivetrain systems.
• Suitable for mountain bikes, including trail, enduro, downhill, and XC bikes.
• Not compatible with cranksets that use a different BCD standard.

Benefits

• Narrow-wide tooth profile improves chain retention.
• Helps reduce the likelihood of dropped chains on rough terrain.
• 7075-T6 aluminum construction provides high strength with low weight.
• 4 mm thick design increases stiffness under heavy pedaling loads.
• Suitable for a wide range of riding disciplines, from XC to downhill.
• Reversible laser-etched graphics allow different installation orientations.
• Simple bolt-on installation for compatible cranksets.

Technical Specs

• Product Type: Narrow-wide chainring.
• BCD (Bolt Circle Diameter): 104 mm.
• Crank Compatibility: 104 BCD 4-bolt cranksets.
• Drivetrain Compatibility: 1x systems.
• Material: 7075-T6 aluminum.
• Construction Thickness: 4 mm.
• Tooth Profile: Alternating narrow-wide design.
• Weight: Approximately 70 g.
• Installation Type: Bolt-on.