hey whats up everyone. i have a set of axis seven MOD in 20s staggard set up. i am running a 20x10 in the rear with a 275 30 tire in the rear right now and i want to know if i could go with something a little thicker. maybe a 35 or 40 for the rear. just for safety for the rims so one wont bend or anything. tell me what you guys think
thanks in advance

oscar

 

I wouldn't recomend it...one, there might be a issue of rubbing...two, youre speedo will be way off since you're increasing the overall diameter

 

Maybe yes. Maybe no. The key is tire height: you want to match the OEM tire height. Use one of the calculators above and experiment with various size tires.

 

so i guess just stick with the 30 profile tire

 

Just avoid bumps/potholes if you can.

Unfortunately I am not a Z owner yet, but I have owned lots of cars, surprisingly all with tires , and I have found short sidewalls to be a pain even on relatively (at least now) run of the mill 17" wheels. My wifes Jetta has 225/45 17's and you have to be really careful, especially in my neighborhood as the curbs are the rolled kind (not the vertical kind where you get the dip to road level for each driveway), so you have to be real careful parking on the street otherwise you end up with one edge of the tire supporting the whole corner of the vehicle.

Realistically (cosmetic reasons aside), the largest rim size you should run is the smallest size that will clear your brakes. For a good visual of this watch a World Rally Championship event on TV. For tarmac sections they run huge brakes which require huge rims, and they can do this because tarmac is typically smooth. When they get onto dirt or gravel or a mixed stage the rim size drops (as does the disc size) and the sidewall gets taller to protect the rim.

If you are lucky enough to live some where with billard table smooth roads then go for the big rims, but if you are like me where you might have to drive down a gravel driveway, you might want to opt for smaller rims and higher sidewalls.

Paul