| Symptom | Perception | Repair process | Note |
| Leaking | Small film of oil on delivery | This is likely leftover fluid from the assembly process. Wipe it clean and monitor for future leaks | Fluid can only come from left side or freewheel location |
| Leaks from hub cover location or continued leaking from freewheel or left side | Contact the enviolo service center for further diagnostics | ||
| Grumbly/ grinding ride feel | Sensation can be felt through pedals, sandpaper „buzy“ ride feel. | Contact the enviolo service center for further diagnostics | |
| Rattling noise | Noise only occurs while coasting in lightest gear | This is expected product behaviour - no reason for replacement | |
| Knocking sound | Can be audible and felt through pedals in specific ratios | Contact the enviolo service center for further diagnostics | |
| Noise from beltdrive cog | Clicking sound from rear belt cog can be perceived | Check the Gates sprocket type. It must be the enviolo specific sure-fit version. If not replace the belt cog. If it is the correct belt cog check for play on the freewheel (Gates & CONTI) and if necessary replace the freewheel | Please follow this link for video instruction |
| Noisy sprocket | Noise can be perceived from the sprocket | Check the assembly and ensure that the correct components (3/32“chain, sprocket and spacer) are used. If everything is correct, replace the sprocket. It might have been caused by manufacturing defect or wear | |
| If the noise persists, please clean the freewheel and if noise persists replace the freewheel. It might have been caused by manufacturing defect or wear | Please follow this link for video instruction | ||
| Slipping/Jumping | It feels like the IGH is slipping | Make sure that the correct chain tension is set and also that the components don’t show any signs of wear | |
| It feels like the Internal Gear Hub is slipping and then engages again | Check the freewheel pawls and clean the freewheel assembly and reinstall it using a medium weight oil. In case the pawls are damaged replace the freewheel assembly | Please follow this link for video instruction | |
| If all other options have been ruled out, check the proper Internal Gear Hub functionality. Contact the enviolo service center for further diagnostics | |||
| Hub drag | It feels like there is resistance from the Internal Gear Hub | It could be sealed bearings at the start of the lifetime. The break-in period is ~100 km. | |
| Please ensure that the chain tension is set properly | |||
| Difficult to pedal | Contact the enviolo service center for further diagnostics | ||
| Blocking shift system | The Internal Gear Hub seems to be locked up at either full overdrive or full underdrive | Unlock the shift system. | Please follow this link for video instruction |
| The Internal Gear Hub seems to be locked in mid range or the ratio range seems to be limited | Contact the enviolo service center for further diagnostics | ||
| IGH “ghost shifts” towards full underdrive | It seems like the controller is moving without active controls | Ensure the cable tension is set properly. If the problem persist please contact the enviolo service center |