Thanks, didn't know that site.
The racing red is paint code NA5. There's no sticker on the bike so that'll be why I couldn't find it lol
Dealer doesn't sell tins (I'm sure I have a tin of BMW branded spray and lacquer in the garage from an old car I had - maybe they only do it for the cars.
Halfords can't mix BMW bike paint, they don't know the codes.
Found a vendor on fleabay though so all good now. Got the top all sanded down and ready for paint now.