Looking for 2.50 & 2.75 x 12" Rims

I'm currently running 1.40 and 1.85 which is too thin. I'm looking for a 2.50-2.75 x 12" front rim and a 2.75-3.50 x 12 inch rear rim. Anybody know where to buy these?

Are you serious?

Is this for a pit bike?

if so, You will find that your front forks and swing arm wont that a rims that size, i am running 1.85 front & 2.15 rear and thats pushing it.

old post but hey
NRG most of the guys now are running 12 x 2.15's including myself and squeeby.
A few people have 12 x 2.5 front and rear but are running a 110 front instead of a 100 front and have some small issues with the front tyre rubbing, may not be a problem with a 100 front tho.