Praxis Works

40t Narrow Wide Chainring - 3-Bolt Direct Mount

Praxis Works 40t Narrow Wide Chainring is a 3-bolt SRAM Direct Mount 1x chainring built for riders who want quieter drivetrain operation and more reliable chain retention on road, gravel, and mixed terrain. The narrow-wide tooth profile helps keep the chain engaged under vibration and hard accelerations, making it a smart upgrade for simplified 1x setups where chain control matters most.

• Narrow-Wide Tooth Profile - Improves chain retention and reduces the chance of dropped chains, especially under rough surfaces and high chain tension
• 3-Bolt SRAM Direct Mount Interface - Clean, stiff fit for compatible SRAM DM crank arms; ideal for modern 1x road and gravel builds
• Chainline Reference - Designed around a 45.5mm chainline on DM road; 48mm chainline when used with Praxis DM GR 1x cranks
• 1x Chain Compatibility - Works with Shimano, KMC, and SRAM 1x 10/11/12-speed chains, including SRAM FlatTop
• Upper Guide Recommendation - For very rough terrain or maximum security, an upper chain guide is still recommended
• Not Campagnolo Compatible - Not compatible with Campagnolo 10/11/12/13-speed chains

Note: Praxis Works 5x110mm BCD chainrings (different mounting standard than this SRAM DM version) are compatible with certain 110 BCD spider-based power meters such as Power2Max, SRM, and Quarq.