Largest Tyre You Can Fit On The Rear Of An R33 Gtst?

[jjman]

Im wondering what would be the largest width tyre i could fit on the 9.5 inch wide rims i have on the rear of my GTST.

The guards have been cut out completely.

At the moment I have 265's on there and there is heaps of room between the tyre and the arch. Not sure about on the inner side near the suspension etc.

anybody know the answer to this?

-and i want sizes that will get in there without rubbing on anything at any suspension travel point. (had tyres that rubbed on my old car and it shat me to tears...)

cheers

J

Edited August 26, 2010 by jjman

[ONE-VIA]

what offset are your wheels if your worried about the tyre rubbing on the suspension

[jjman]

good question.

Ill try to find that out

what offset are your wheels if your worried about the tyre rubbing on the suspension

[shanec86]

why would you want to go any bigger than a 265 on a 9.5" wide rim anyway?

[jjman]

for the sake of it. Traction. Looks. bit of everything really.

the rim certainly has room for a wider tyre so it isnt sacrificing function over form..

why would you want to go any bigger than a 265 on a 9.5" wide rim anyway?

[subliminal]

why would you want to go any bigger than a 265 on a 9.5" wide rim anyway?

This is true. A 9.5" wide rim is only a touch over 24cm wide, so anything wider than a 245 in reality is getting into overkill. The wider profile tyre you put on, the more the tyre is gonna balloon out over the rim and will probably have a negative effect on overall grip (cornering particularily, as the sidewall flexes). Hope that helps.

[some_cs_student]

This is true. A 9.5" wide rim is only a touch over 24cm wide, so anything wider than a 245 in reality is getting into overkill. The wider profile tyre you put on, the more the tyre is gonna balloon out over the rim and will probably have a negative effect on overall grip (cornering particularily, as the sidewall flexes). Hope that helps.

?! The 255/40/17 tryres I bought are recommended for an 8-9inch rim, not a 9.5. 265mm are normally recommended for 9.5"

245/45 is probably not recommended by tyre manufacturers for a 9.5" rim.

[jjman]

yeah i think the prior post is a little out.

as per this guys post on a 255 on a 8-9 inch.

at the moment with the 265 (which was the recommended standard fitment from the supplier) the tyre sits pretty much flush with the rim. Perhaps curves in a bit (stretched). So def room for wider without ballooning.

?! The 255/40/17 tryres I bought are recommended for an 8-9inch rim, not a 9.5. 265mm are normally recommended for 9.5"

245/45 is probably not recommended by tyre manufacturers for a 9.5" rim.

[Jap_Muscle]

This is true. A 9.5" wide rim is only a touch over 24cm wide, so anything wider than a 245 in reality is getting into overkill. The wider profile tyre you put on, the more the tyre is gonna balloon out over the rim and will probably have a negative effect on overall grip (cornering particularily, as the sidewall flexes). Hope that helps.

your saying that a 245 tyre has much more traction ability then a 275 or even 305 tyre? although it may balloon, under heavy acceleration there is a much bigger contact path and bigger sidewall. correct me if im wrong.

bigger is always better i thought?

[ONE-VIA]

your saying that a 245 tyre has much more traction ability then a 275 or even 305 tyre? although it may balloon, under heavy acceleration there is a much bigger contact path and bigger sidewall. correct me if im wrong.

bigger is always better i thought?

in a straight line yes

round corners those sidewalls are gonna flex more then a gym junkie

[jjman]

yeah i think it will happily take more width and improve performance of both straight line as its fatter, n corners cos it definately wont ballon at 275 or 285 methinks.

perhaps this is a better topic header

-does anybody know the biggest tyre for best best performance on a 9.5 inch rim...

[shanec86]

read and learn

http://www.carbibles.com/tyre_bible_pg3.html

[bozodos]

interesting read. I had to get the local tyre shop to fit 235/45/17 tyres on my 9.5" rims 'off the books', due to the rims being half an inch too wide according to the manufacturer data. TBQH I havent noticed any loss of tractability compared to the old 255s. You could probably also say that buying better quality tyres in a thinner size would be more beneficial as well.

[bradsm87]

If u want more grip, look at your wheel alignment.

Sounds like what yoiu need is a set of wheel spacers to space the wheel out to fill the guards. Muffin topping tyres is not cool at all lol. U wouldn't want to run more than 265. It certainly won't look better, that's for sure!

[Checkbuzz]

I was running 265/30x19 on 9.5" rims with room to spare (they looked almost strectched) - I reckon a 275 or 285 would have fitted easy.

Now running 245/35x19 on the same rims because I saved $500 and actually prefer the 35 profile over the 30 profile. (looks, comfort, ride and grip). To be honest you cannot tell the difference looking at it between 245 & 265 except the 245/35 fills the wheel arch more than the 265/30 so looks better.

Another decision to go with the narrower tyre is tyre wear from running negative camber is more pronounced as you go wider...

P.s Falken FK452's are my tyre of choice - they are the best bang for buck out there!

[alr33x]

i had 265/30 on a 10" rim fitted fine was a good look not stretched not ballooning... now i got 245 ona 10" still looks good.

275 or 285 on a 9.5" is ridiculous.

[Checkbuzz]

i had 265/30 on a 10" rim fitted fine was a good look not stretched not ballooning... now i got 245 ona 10" still looks good.

275 or 285 on a 9.5" is ridiculous.

Actually 285 is still a recommended size for 9.5" rims. Only when you get up to 295 is a 10" rim the minimum rim width.

Nothing ridiculous about it....

In fact what you have there - 245 on a 10" rim is outside of manufacturer specs; a 245 should go on a 9.5" rim maximum.