Smallest wheels?

[JackieFan]

How do tyre sizes work? For a 10J rim (254mm) what size tyre would actually fit? Is it as simple as one that is exactly 254mm or near as doesn't matter, or is there another way of working it out using the aspect ratio?

If you get this done anytime soon then I'd be really interested in how much the rim weighs. Also how strong would it be?

If it helps then S12's are the same PCD as MGB's and some Triumph's, Stags being one (I think the others are the TR's and 2000's), you can get some proper retroness for next to no money if you're willing to hunt about

[drew555]

Right.

Got this from.......... somewhere.

Rim width......Minimum tyre width......Ideal width..........Maximum 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


Based on this, my 6x13s on my Orion needed at least 175s, preferably 185s or 195s, all the way to 205s. Thats a 30mm diffence between minimum and maximum.

So I put on 155/70 r13s with a bit of stretch, and it looked cooool (with plenty of stretch to go).

For those unfamiliar with tyre stretch, it looks kinda like this.....



(not the best pic, but meh, what can you do? If I stumble across a better example I'll post it).

According to the rules for 9" wheels, I need a minimum of 235.

235 wide 14s? Not gonna happen.

Buuut.... with a bit of tyre-fitter-Fu, 185/60 14s stretched by 50mm will fit.

And in the world according to Drew, will look the danglies (and give more arch clearance due to the decreased sidewall height and stretched sidewall profile).

That was hard work.....

[PukkaSilvia]

i had 205/50/15s on 8j alloys on my s12,
there stretched but i know that i could fit 195s on there. main thing is choosing the sidewall height. With 195s the height would have to be at least 55 on a 15 inch rim

Also i did not stretch them any further than what i was using as the camber on the back of the s12(especially lowered ones) ment that the iner edge would wear extremely fast and explode.

If your going to do the mad stretched look you should definately do rear camber correction before you drive it

[drew555]

Awwwwwwwwwwwwwwwww... but I love the cambered look

Good point though.

Bear in mind this is a drift only car...

But going through tyres that fast may be counter productive.

[JackieFan]

Don't know if this has been posted before, or even if the info is any good but it's worth a mention.

http://www.alloywheelsinternational....mentguide.html

If you want to go for small wheels then apparently the Daewoo Matiz has a PCD of 4 x 114.3 and an ET of 35