Hey guys, I was thinking of getting some 15inch wheels for my P5. Anyone know what size tires I should get to avoid any problems? I want to have two sets of wheels so I can use the 15's in the winter and when I go camping, and the 16 stock wheels when I want some performance. I may even leave the 15's on if the ride is less bumpy and noisy as the california rodes are crappy. Anyone know what size 15's will be most similar to the stock tire height and width? Also, is their problems clearing the brake rotors? Thanks!

PS. Anyone know where I can get 15 inch wheels for the p5? Are the offsets the same on 15's as they are on 17's? Thanks. Excuse me if this is a dumb question. I am a newbie. Thxs

 

Okay, after some research I think I can run these specs for my wheel. Does it look okay?

Wheel Size: 15 inch by 7
Bolt Pattern: 5x114.3
Tire Sizes: 205/60/15 (4.3 slow) or 195/60/15 (2.3% Slow)
Offset: ?

Does offset matter when it comes to a non-lowered car? Will I have any problems? Thanks!

 

wheel/tire calculator

http://www.miata.net/garage/tirecalc.html

 

got mine from TireRack as a package with the snow tires mounted on them. Real simple that way, they arrived and got swapped on to the car.

 

Offset only matters WRT the width of the wheels. So in a 7" wheel you still need >= 45mm offset to be safe.

Why not a 225/50/15 tire though .. why not get as much rubber on the ground as possible?

 

Sorry, I am a real newbie at tires. 225/50/15 will be wider than 205/60/15 I assume with the same height. If I get a >45 offset i should be good? Thanks!

 

I've got a set (older 15x6" alloy 929 wheels.)

I'll sell them to anyone who's interested for $200 shipped (Continental US only.)

Email me for pics / details jmackenz@insight.rr.com

Jim