If the knob keeps spinning or won't secure the footrest, there is likely an issue with the internal nut. Please follow these steps to fix it:

1. Check the Nut Status Flip the footrest over and look inside the adjustment slot on the bottom:

Missing Nut: If you don't see a metal nut inside the slot, the knob has nothing to grip. Please contact our support team and we will send you a replacement nut for free.

Misaligned Nut: If the nut is tilted or hasn't dropped into its designated slot, the knob will just spin without locking.

2. Reinstall the Nut If the nut is there but misaligned:

Use your finger or a small tool to push the nut firmly into the bottom of the slot so it sits flat and centered.

Align the adjustment knob with the nut's threads and turn it clockwise slowly until it is completely tight and the footrest is secure.

Quick Tip Perform this in a well-lit area so you can easily see the threads. If the nut is missing or the knob still won't tighten after realigning it, contact our support team and we will get the necessary parts sent out to you immediately.