Back in the day, we used to use Liquid Paper or model paint to make our car tires Raised White Letter types. Something like
THIS PERHAPS?I like the low buck approach.
Luke M
Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.