[ath748]

I did it on my R6 a couple of years ago. You can buy a white "TyrePaint" pen from most car/bike shops (Halfrauds too). Takes a while, do it carefully and make sure the tyre surface is very clean and dry. The paint never cracked for me.

This is something I can still not decide whether it looks cool or tacky. Jury's out I reckon......

Ade.