This is probably caused by a damage to the freewheel pawls inside the freewheel body. This is a serviceable part of a NuVinci Optimized™ transmission hub. Please ask your dealer to order the appropriate spare parts from a wholesaler or from the enviolo service center.
- The Ratio Range of My NuVinci Optimized™ Transmission Has Changed. I Can Not Shift the Complete Range from Full Overdrive to Full Underdrive.
- Installation of Freewheel (New and Older Versions)
- enviolo Owner's Manual
- Is It possible to Buy NuVinci Optimized™ Products to Upgrade/Retrofit My Existing Bike?
- My Bicycle with the Harmony H|Sync™ System Is Not Working and Shows “Gear Calibration” in the eBike Systems Display.