Zwift Adds AI Fatigue Detection to ERG Mode

Zwift just dropped a surprise update that’s got the indoor cycling community buzzing. The virtual cycling platform now supports automatic ERG mode adjustments based on real-time fatigue detection.

The feature uses power output variance and cadence data to detect when you’re struggling and automatically reduces target wattage by up to 5%.

Early testers report completing structured workouts they’d normally fail. “It’s like having a coach that knows exactly when to back off,” wrote one beta tester on Reddit.

The update is rolling out to all subscribers this week. No additional hardware required.

Chris Reynolds

Chris Reynolds

Author & Expert

Chris Reynolds is a USA Cycling certified coach and former Cat 2 road racer with over 15 years in the cycling industry. He has worked as a bike mechanic, product tester, and cycling journalist covering everything from entry-level commuters to WorldTour race equipment. Chris holds certifications in bike fitting and sports nutrition.

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