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View Full Version : Whats the widest tire that will fit on 15x7 rim?

L.D. 100
06-20-2003, 11:17 PM
so far the widest i've seen is 205, is that the max?
gsu240
06-20-2003, 11:22 PM
7 inch width, i have 215's, but you "could" fit 225 but they would like ****
Dousan_PG
06-20-2003, 11:39 PM
imho 225

but that's for dum dums who dont care about handling. stick w/ a 205
NiteKids
06-20-2003, 11:56 PM
Hey I'm using 225's........oh wait but that's streched on a 9... :p
TBreu007
06-21-2003, 12:30 AM
Pretty much everyone in SCCA Improved Touring "S" class runs 225/45 or 50's on their race cars. In ITS class, a 15x7 wheel is the biggest you can run for most cars. Of course, these are on R-compound tires with stiffer sidewalls, so rolling over of the sidewalls isn't as much of a problem as on street tires.
CoasTek240
06-21-2003, 12:37 AM
yeah well i'm trying to run 225's on 8" wheels
Anubis
06-21-2003, 02:56 AM
its all about 195's HAHAHAHAHAH!!!!!!!!!
revat619
06-21-2003, 04:55 AM
Originally posted by CoasTek240
yeah well i'm trying to run 225's on 8" wheels

Hey, i've got 225/50's on my 16x8's...
L.D. 100
06-21-2003, 06:59 PM
okay, thanks all...time to go shopping
silnv
06-22-2003, 12:19 PM
I have 225/50/16 on my 16x7 fronts and 245/45/16 on my 16x8 rears. Looks pretty good too, not balloony like ya would think.
AKADriver
06-22-2003, 06:40 PM
Originally posted by dousan36
imho 225

but that's for dum dums who dont care about handling. stick w/ a 205

An autocrosser choosing R tires would more than likely use the 225 over the 205 on a 15x7.

For street tires, yeah, go with the 205.
Dousan_PG
06-22-2003, 07:21 PM
yes i agree

but 95% of the people out there asking WONT be putting R tires on a street car..hence my dum dum comment :)
Warwick5s
06-23-2003, 12:53 PM
the problem is that they don't really make anything decent in 15" diameter wider than a 205. i've been looking for a 215-50-15 tire in any kind of high perf tire and they don't exist in anything other than R compounds.
DuffMan
06-23-2003, 01:29 PM
Dum dums who dont care about handling? I'm sure given equal tires, 225 would grip more than 205.

Anyways, ES100's come in 225/50/15s.
Dousan_PG
06-23-2003, 01:32 PM
Originally posted by DuffMan
Dum dums who dont care about handling? I'm sure given equal tires, 225 would grip more than 205.

Anyways, ES100's come in 225/50/15s.


talkin' about sidewall flex, slick.
DuffMan
06-23-2003, 01:36 PM
Sidewall doesnt flex THAT much. 7in is the recommended width for 225/50.

Also the breakaway is more predictable in track driving. I'd rather have stiff suspension and slightly flexing sidewalls, than stiff sidewalls and weak suspension. Of course, I could have both stiff, but I drive on the street mostly, so this combination works best for me.
Dousan_PG
06-23-2003, 01:45 PM
Originally posted by DuffMan
Sidewall doesnt flex THAT much. 7in is the recommended width for 225/50.


depends how hard you push the car. also depends on tire and compound. as stated, if its R compound, its another story, but most people arent running Rs.

depends on design of tire too

there's a variety of factors of course.