camuman

anyone ever crammed a 295 on a 9.5" wheel? if so how bad does it crown? i have a 275 on a 9.5 now and it fits well. just curious. i know a 10-11" rim would be ideal.

dc2-2-ap1

I have no clue, but you will get flamed a lot less with your question than the normal can I fit a 205 on a 10" wheel.

Manga_Spawn

I know junky has a 295 on his 11.5 inch wide wheels and the sidewall is vertical so on a 9.5 inch wide wheel it would be overkill. Hell a 275 is overkill on a 9.5 inch wheel. Also I am not sure if you have 17's but there is only 1 street tire that comes in that size and they are currently out of stock. I am sure junky can chime in with more info.

ZDan

If the tire manufacturer says you can fit it onto a 9.5" wheel, I wouldn't have any qualms about doing it.
But most 295 street tires have 10" as the minimum recommended wheel width.
Hoosier A6 and R6 295s are OK on 9.5, though (according to them, and they should know...).
Most 285s are going to be OK on 9.5".

camuman

Gotcha. It's an 18" wheel.

dc2-2-ap1

Too big for an 18" wheel. You could possibly swing it on a 17" because of the larger sidewall.

Jet3010

For a 9.5" wheel the biggest I would go is 285 /30/18. Even then it will be buldging past the rim quite a bit.

s2000Junky

If you enjoy your tire profile like your women ("Muffin Top") then no problem

ZDan

"Muffin-top" or stretched-looking depends a *lot* on the specific tire.
Here's a Michelin Pilot Super Sport 275/35-18 on my FD's right rear 18x9.5:

FAR from pooched.

I might have gone with 285s, but 275/35-18 gave me the OD I wanted for my Texas Mile run...

Personally, I prefer the look of a full-width, meaty tire fitment over semi-stretched fitments, and for the street I like the extra protection against curbage. And there's no arguing that you'll get more grip (particularly lateral grip) with a wider tire. Whether you have the horsepower to exploit the grip without the extra weight costing you in terms of lap time is another question...

s2000Junky

Tire brand/category and 17" vs 18" make tire width fitment decisions difficult. My 295/35/17 Kuhmo XS look very much the same as ZDave picture above on a wheel that is 2" wider. My tires section width measures an honest 295mm. Assuming the same on a 295/30/18, with a 9.5" rim width, it would be severely pinched, certainly beyond the manufactures recommendation. Doesn't seem to stop Mustang owners though. Some "bulge" can help in strait line launch traction aiding in compliance (Which I am sort of assuming is what the OP is after) Its sort of pointless on a big 18" rim where there is no sidewall to flex though. Your just going to make the rear of the car less predictable with little to no additional tire on the ground in the strait line.