Gates

CDX Enviolo Fin Line 9-Spline 26t Rear Sprocket

The Gates CDX Enviolo Fin Line 9-Spline 26T Rear Sprocket is a wear-focused belt-drive cog built for high-load daily riding on e-bikes and trekking/commuter bikes. It pairs the proven Gates CDX tooth shaping with an Enviolo-specific mounting update to improve retention and reduce unwanted noise when conditions get rough, while the Fin Line center guide helps keep the belt tracking securely. Compatible with 11mm pitch Gates Carbon Drive systems.

• 26-tooth rear sprocket (9-spline) - Direct-fit option for compatible Enviolo interfaces when replacing a worn cog or dialing drivetrain setup
• Threaded retaining ring interface - Updated mount style improves sprocket retention and helps minimize noise under adverse conditions compared to snap-ring retention
• Fin Line center track + guide flange - Helps prevent the belt from walking off the sprocket, supporting consistent tracking on commutes and mixed-surface riding
• Mudsports tooth profile - Proven shaping for efficient belt engagement and long-term durability in wet, gritty, or variable conditions
• Aerospace stainless steel construction - Wear-resistant material choice for long service life in high-torque e-bike use
• 11mm pitch compatibility - Designed for Gates CDX belt-drive systems using 11mm pitch belts
• Compatibility note - Not compatible with Enviolo hubs from model year 2023 or earlier