seldom · Nov 15, 2024

I have cracked one of my alloys 22" on the front. As a temporary bodge to get the car home from my work (rural area-windfarm) how badly would I risk the diff/trans box by putting 2x20" wheels on the front to drive it the 30-ish miles home?
AA won't recover it because of where it is and I don't want to leave it there over the weekend if I can avoid it. Have replacement wheel ordered it should arrive in 3-5 working days so it would mean car sat there for over a week in an area that the not so usefull members of society roam with their quads and trail bike's.

Anaconda · Nov 15, 2024

It's only a guess but if the combined size of the wheel and tyre are the same then most likely you will be fine.
Smaller wheel with larger side wall on the tyre?

Datatek · Nov 15, 2024

As said Anaconda, it may be that the rolling radius is the same depending on the tyres fitted.

seldom · Nov 15, 2024

22 with 40 profile tyre and 20 with 45 profiles. quite a difference.

I'll hope for the best and drive it to the security hut if tyre holds out enough.
Might try a tub of slime in it and see if that will seal it for 2-3 miles.

roythebus · Nov 15, 2024

Odd size wheels have been reported to have an effect on ABS sensors as ABS thinks one wheel is turning at a different speed. I'd suggest change wheel, drive it home using care and caution. Don't get wheels welded, it's now an MoT failure so I've read. It shouldn't make a difference to the diffs as they will think the car is cornering all the time.

Grrrrrr · Nov 16, 2024

seldom said:
I have cracked one of my alloys 22" on the front. As a temporary bodge to get the car home from my work (rural area-windfarm) how badly would I risk the diff/trans box by putting 2x20" wheels on the front to drive it the 30-ish miles home?
AA won't recover it because of where it is and I don't want to leave it there over the weekend if I can avoid it. Have replacement wheel ordered it should arrive in 3-5 working days so it would mean car sat there for over a week in an area that the not so usefull members of society roam with their quads and trail bike's.

Quiksteel might get you home?

Datatek · Nov 16, 2024

seldom said:
22 with 40 profile tyre and 20 with 45 profiles. quite a difference. I'll hope for the best and drive it to the security hut if tyre holds out enough.
Might try a tub of slime in it and see if that will seal it for 2-3 miles.

Check the rolling radius on the web, you may find that there is not much difference. As an example, 16" rims with the correct tyre have the same rolling radius as 18" rims with the correct tyre on my P38's

pwood999 · Nov 16, 2024

How badly cracked ? Surely if you just get it to the nearest public highway, then AA will recover it ?

gold rover · Nov 16, 2024

seldom said:
I have cracked one of my alloys 22" on the front. As a temporary bodge to get the car home from my work (rural area-windfarm) how badly would I risk the diff/trans box by putting 2x20" wheels on the front to drive it the 30-ish miles home?
AA won't recover it because of where it is and I don't want to leave it there over the weekend if I can avoid it. Have replacement wheel ordered it should arrive in 3-5 working days so it would mean car sat there for over a week in an area that the not so usefull members of society roam with their quads and trail bike's.

Hi. Just curious as to why they won't recover. Is it because of your level of cover? Until this year, when they got greedy, I have always used AA when in UK. I have always asked and always had confirmed they will recover if off-road.
In fact didn't they have an advert where the recovery vehicle was up a mountainside?

seldom

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Anaconda

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Datatek

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seldom

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roythebus

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Grrrrrr

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Datatek

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pwood999

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gold rover

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