If your hub seems to not have the full ratio range or not reach its top speed, see below what you can do.

Legacy compatibility

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

Problem diagnosis

Inspect the hub. Follow this guide if you detect:

• The hub does not reach the full or correct gearing (ratio range):
  • Urban - 256%
  • City - 310%
  • Trekking - 380%
  • Heavy Duty - 380%
  • Extreme - 380%
• Top speed doesn’t seem to be reachable at a reasonable cadence.
• The manual hub interface may be incorrectly installed, hence not allowing the full range.

Solution

You will need to perform different checks depending on the transmission system you have:

AutomatiQ

For a bike with an AUTOMATiQ hub interface (AHI):

1. Calibrate the AHI using the AUTOMATiQ App
   See detailed instructions
2. On City and Trekking hubs, ensure the spline nut is well-tightened
   See detailed instructions
3. On speed pedelecs, make sure the correct primary ratio is selected.

Manual

For a bike with a Manual hub interface (MHI):

1. Reset to full overdrive using the MHI.
   See detailed instructions
2. Ensure the cable slack is correct.
   See detailed instructions
3. Ensure the cable length is correct.
   • See detailed instructions with the cable-cutting tool
   • See detailed instructions without the cable-cutting tool
4. On City and Trekking hubs, ensure the spline nut is well-tightened.
   See detailed instructions
5. On speed pedelecs, make sure the correct primary ratio is selected.

Your ratio range should now be fixed

If you successfully followed the steps above, then the ratio range should be restored.

If the problem persists, contact support.