Originally Posted by TIFF
Originally Posted by gurnE
Not illegal, just frowned upon

aaarrrrr....One of them unwritten rules that no-one really knows

They couldn't do you for it. In fact I wouldn't say it was that frowned upon any more.
It's just the whole 'racing on the road' image it could project.
That was what the copper I asked a while back said anyway.
Plenty of bikes/scooters leave the manufacturers with there WSB/MotoGP riders numbers on the replica paint jobs