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8 inch rim question

Started by MR77LX , Feb 28 2015 08:42 PM

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20 replies to this topic

#1 MR77LX

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Posted 28 February 2015 - 08:42 PM

Hey All,

I have a set of 18x8 inch rims on my LX with 245 width tyres.

I would like them wider.

Would anyone know if a 265 width tyre fit on a 8 inch?

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#2 _mello92_

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Posted 28 February 2015 - 08:48 PM

Yeah sure can, your limit will be the sidewall profile.

A mate of mine had 265/35R18 on 8 inch wide rims but was a squeeze (Commodore ute).

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#3 MR77LX

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Posted 28 February 2015 - 08:58 PM

That is the actual tyre size that im after.

Am i going to run into any issues?

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#4 _mello92_

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Posted 01 March 2015 - 03:23 PM

There are too many unknowns mate, I wouldn't have a clue.

Maybe have a look at what clearances you have now, figure out the difference in width and height and go from there.

Don't forget there will be variations between manufacturers.

Edited by mello92, 01 March 2015 - 03:25 PM.

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#5 Litre8

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Posted 01 March 2015 - 04:37 PM

Found this on another forum....

I think 265 on an 8" rim is not ideal.....

Rim Width ::::::: Minimum Tyre Width :::::: Ideal tyre width :::::: Maximum tyre width
5.0 inches :::::::::::: 155 mm :::::::::::::::: 165 or 175 mm ::::::::::::: 185 mm
5.5 inches :::::::::::: 165 mm :::::::::::::::: 175 or 185 mm ::::::::::::: 195 mm
6.0 inches :::::::::::: 175 mm :::::::::::::::: 185 or 195 mm ::::::::::::: 205 mm
6.5 inches :::::::::::: 185 mm :::::::::::::::: 195 or 205 mm ::::::::::::: 215 mm
7.0 inches :::::::::::: 195 mm :::::::::::::::: 205 or 215 mm ::::::::::::: 225 mm
7.5 inches :::::::::::: 205 mm :::::::::::::::: 215 or 225 mm ::::::::::::: 235 mm
8.0 inches :::::::::::: 215 mm :::::::::::::::: 225 or 235 mm ::::::::::::: 245 mm
8.5 inches :::::::::::: 225 mm :::::::::::::::: 235 or 245 mm ::::::::::::: 255 mm
9,0 inches :::::::::::: 235 mm :::::::::::::::: 245 or 255 mm ::::::::::::: 265 mm
9.5 inches :::::::::::: 245 mm :::::::::::::::: 255 or 265 mm ::::::::::::: 275 mm
10.0 inches ::::::::::: 255 mm :::::::::::::::: 265 or 275 mm ::::::::::::: 285 mm
10.5 inches ::::::::::: 265 mm :::::::::::::::: 275 or 285 mm ::::::::::::: 295 mm
11.0 inches ::::::::::: 275 mm :::::::::::::::: 285 or 295 mm ::::::::::::: 305 mm
11.5 inches ::::::::::: 285 mm :::::::::::::::: 295 or 305 mm ::::::::::::: 315 mm
12.0 inches ::::::::::: 295 mm :::::::::::::::: 305 or 315 mm ::::::::::::: 325 mm
12.5 inches ::::::::::: 305 mm :::::::::::::::: 315 or 325 mm ::::::::::::: 335 mm

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#6 rexy

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Posted 01 March 2015 - 05:01 PM

image.jpg 411.65K 14 downloads
Top left is 275/40/17 on an 8.5 inch rim. Top right is 275/50/15 on an 8.5 inch rim.

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#7 MR77LX

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Posted 01 March 2015 - 07:04 PM

Yea I don't think it's ideal.
I currently have 245 on my 8inch but I would like to go wider.
I will speak to my tyre guy and see what we can do.

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#8 _LS1 Hatch_

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Posted 02 March 2015 - 02:12 AM

That is the actual tyre size that im after.

Am i going to run into any issues?

You can just look up what the tire manufacture says is the recommended width of course, which for a 265/35-18 for a few brands I looked up off hand are a 9" - 10.5" wide wheel.

Obviously people run tires on wheel sizes way out of spec, but it is of course not ideal and I would say best to stick with what they were designed for probably for the average sort of setup.

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#9 MR77LX

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Posted 02 March 2015 - 01:37 PM

I spoke to Bridgestone today.

They said the tyre will definitely fit on but it will bulge out.

The tyre will look allot bigger then the rim

Has anyone got any pics of an 8inch rim with 265?

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#10 _Mint_

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Posted 02 March 2015 - 07:24 PM

i have 265 on my 8 inch rim(baby 14") reckon they are perfect

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#11 _Mint_

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Posted 02 March 2015 - 07:34 PM

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#12 MR77LX

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Posted 02 March 2015 - 08:10 PM

Do the tyres bulge out?

I dont think they do according to that picture

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#13 _Mint_

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Posted 02 March 2015 - 08:23 PM

nah Rabs,they do have a "full" look the tread edge(the bit that contacts the road) is inline or there abouts with the rim bead

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#14 MR77LX

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Posted 02 March 2015 - 08:27 PM

That’s great news mate, how about safety wise? Why do they recommend these tyres on a 10inch rim?

Are there any vibrations at high speeds?

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#15 Litre8

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Posted 02 March 2015 - 10:03 PM

Maybe its just me but the top picture in Mint Julip's post above definately shows the tyres do bulge out from the rim face, the rim lip is obscured for over half its circumference.

Heres a pic of 265's on 10" rim..

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#16 _Bomber Watson_

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Posted 02 March 2015 - 10:19 PM

Im with ^

PIcks of the 265 on the 14 are bulged like balloons. Rims need to be an inch wider atleast. Would look atrocious with less sidewall.

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#17 _Mint_

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Posted 02 March 2015 - 11:01 PM

heres a 245x60x15 on an 8 1/2" convo pro as you can see it pulls/rolls the sidewall in more

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#18 Redslur

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Posted 03 March 2015 - 11:29 AM

I would be sticking to 245's on an 8 inch rim. I just put 245's on my 8.5 inch rims and they are a very good fit for the rim size. 265's will have too much stress on the side walls when cornering I reckon. Not legal either. All my references for 265 wide tyres are either on 9 or 9.5 inch rims at the smallest.

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#19 MR77LX

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Posted 03 March 2015 - 12:40 PM

After looking at those pictures i will stick with the 245 on the 8 inch rim.

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#20 _Mint_

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Posted 03 March 2015 - 07:50 PM

interestingly I just looked on BF Goodrich's website their recommended rim width for a 255x60x15 tire is min 7" max 9"
http://www.bfgoodric...adial-t-a-tires

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#21 _LS1 Hatch_

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Posted 04 March 2015 - 02:25 AM

After looking at those pictures i will stick with the 245 on the 8 inch rim.

Remember too of course a higher profile 15" or 14" tire is going to look and bulge out different than a 35 series 18" tire even on similar width rims. (from the stiffer/shorter sidewall)