If you feel or hear a knocking sound or sensation, see below what you can do.

Problem

Upon inspection, you detect one of the following:

• A knocking sound can also be felt through the pedals.
• A knocking sound that happens in a specific ratio.

Solution

If the hub is within 2 years of age, return the hub or wheel using the warranty request form. Enviolo hubs are closed containers and need to be returned for closer inspection.

With a hub still in warranty, you should have sent it to our Service Center for closer inspection.