From
https://www.gov.uk/displaying-number-plates/rules-number-plates"
If you ride a motorbike or motor tricycle
Motorcycles and motor tricycles registered on or after 1 September 2001 must only display a number plate at the rear of the vehicle.
If you ride a motorbike or motor tricycle registered before 1 September 2001 you can also display a number plate at the front, but you don’t have to.
Motorcycle and motor tricycle number plate numbers should be on 2 lines.
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I took mine off when I collected it and haven't been stopped
