What is the best width of Toyo RA1 tires for use on the stock AP1 rims, Given the Rim width I can probably fit something on that wider than the stock fitment
however I expect there is some trade-off. ie rolling the tire severely due to sidewall compliance, Then again they are stiff tires?


Some experiences would be helpful

Thanks

 

I autocross with 225/50 in the front and 245/45 in the rear and they look about perfect on the wheels I think. You could go 245 all around if you really wanted. The 255/50 they offer is probably too tall for the rear.

What sort of racing are you looking at doing?

 

The most popular sizes for OE wheels is the 225/245 combo as stated above.

 

That's what I used to use.

 

I'll be doing the odd Autocross but mostly solo1 track type events. I'm planning to have a set of dedicated track rims and tires so I figured it well worth it to get the R compounds.

All my buddies are running RA1's as well so
It makes comparing cars and times a little easier.


So you're not rolling to the sidewalls heavily with this width?

Thanks for your help

 

225/245
205/245
205/225

I've run the above combinations this past year. You won't go far wrong with any of them. 225/245 preferred, but in my case, with Kumho VictoRacers, they didn't "look about perfect" at all. The fronts bulged out a lot, I initially thought they'd put the rears on the front! Personally, I wouldn't try 245s on the 6.5" front wheels.