This article will explain how to troubleshoot any enviolo hub of any axle size whose sprocket lost traction.

Backward compatibility

This guide is compatible with legacy 135mm solid axle hubs (Commercial/CO, Sportive/SP, Cargo/CA, N360, N380, N380SE), and 148mm modular axle hubs (Sportive/SP, and Cargo/CA).

Problem

Upon inspection, you detect that the sprocket has lost traction. That is a sign that the freewheel may be broken.

Solution

To fix the issue, you need to replace the freewheel. Follow this guide for repair instructions: How to replace or clean the freewheel on a hub

Video

Your sprocket should now be firmly in place.