I'm looking at some very wide tires for next season. One of the possibilities I'm considering is going to 10" wide rims (I haven't checked on what that would do to my track). There are some attractive 13" tires on the market.

Question is: Can I fit 13" rims over my brake calipers? I have the standard GXL equipment on all 4 corners. I want to know whether a 13" rim will be of sufficient diameter to clear the calipers.

 

If you have the 4 piston calipers, then the smallest you can probably go is 15", since that's what came stock.
How available are the tires in a 15x10?

 

We run 15x8 steel circle track rims on a 88' turbo II with the 4 piston calipers. We had the wheels built to the correct offset and they were quite cheap. 15x10 shouldn't be hard to get and tire wise I think you might have to go to slicks.

-Trent

 

I found a discontinued Hoosier listing for a 23.0x10x15. They still list a 23.0x9.5x15, but they don't make it in a soft enough compound (R45).
I think most FPers run the 22.0x10x16 (R35)
Good luck

 

Ralph,
There is a guy in the first gen section that just put 4 caliper second gen brakes on his first gen which he runs 13" rims on. If I can find the link I will post it.