12.00-20 6 bolt rims

Hi All,
I was wondering if anyone had discovered a source for 12.00-20 6 bolt rims?
Do they actually exist? I was thinking about putting striker tires on my XM211/M108
crane truck hybrid, but the Striker tires seem to come on 10 bolt rims.
Can someone shed some light on this for me?
Thanks,

a 12" wide wheel, or a wheel that can accept a 12" tire?

I just got an email from a friend that said that the 6 bolt rims for the XM211 will accommodate a 12.00-20 tire. Does that sound right? I want to put striker tires on the existing rims if I can.
Are there any other issues with doing this, like clearances?
Thanks,

The standard rims for a 2 1/2(M35) can take a 12-20 tire. The rims are stamped in the inside that they take up to 12-20. The M108 I just got has 12-20's mounted on the front axle.

Dennis

they will fit on the rims, but I would be shocked if you didn't have rub issues in the rear(unless your truck is singled)

Thanks guys,
Yes the truck is singled. What it had when I got it was 10.00-20s,
so this should be an improvement especially since they are radials.