The Tacx training tyre T1390 does not simply have to be fitted over the existing tyre. Instead, it should be fitted as a replacement for the existing tyre.

- Remove the existing tyre from your road bike.
- Fit the Tacx T1390 training tyre directly onto the bike, just as you would with a conventional tyre.
- Make sure the tyre is properly inflated and adjusted to ensure optimal performance and safety.