Is it permitted for a motorcycle owner to replace the motorcycle’s original-size tires with tires of a different size?
- Yes, but only on motorcycles with a sidecar.
- Correct answer: No, unless he obtains a pre-approval to do so from the Licensing Authority.
- Yes, provided that the new size deviates within 10% of the size indicated in the vehicle’s registration document.
- Yes, he may save fuel that way.
Why this is the answer
The correct answer in the official bank: No, unless he obtains a pre-approval to do so from the Licensing Authority.
Tire sizes affect road grip, braking, stability and speedometer accuracy, so they are part of the vehicle's registered specification. A motorcycle owner may not replace the tires with ones of different sizes without prior approval from the Licensing Authority. There is no general permission for a deviation of a certain percentage, and saving fuel does not justify a change without approval.