Increasing wheel offset

Sayam

Sayam

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Firstly, merry Christmas and happy new year to all

My wheels are 18x8J ET42 and they rub on the back when I have a full compliment of passengers. I know for a fact ET45 will be fine

I've found a company in Essex who offer a service where they machine the wheel to increase the offset

I called them and they seem legit and explained that wheel manufacturers usually leave 10mm between the point where the wheel seats on the hub and the start of the taper for the bolt. (Meaningless to me)

Therefore they explained they are happy to increase the offset of my wheels up to 5mm

I will only ask for 2-3mm to be removed

I wanted to know if anyone else has tried this and what your experience is

I think I'll get away with the fronts as they seem to be ok

They charge £40 each wheel or £140 for four

I've searched but I'm using my phone and couldn't find an answer

Google says some people are dead set against this and offer wild and technical explanations

Those who have tried it seem to casually promote the machining of wheels

I have a generally lax 'eff' it attitude to life and I'm prepared to buy a new set of wheels with the correct offset so if machining these ruins them I haven't lost anything
 
I wouldn't do it personally, it's going to reduce the design thickness of the mounting face and for reduce, read weaken.
At normal speeds, it would probably be ok but start to push it a bit, hit a pothole maybe and you can never be sure that the modified wheel will hold up.
I would just buy the new set of wheels.

And Merry Christmas by the way.... ;)
 
What size tyres do you have on them?

It's not always about the offset of the alloys which gives you rubbing.
 
+1 what size, make and what place on the sidewall do they rub?

From make to make the same size tyre can vary in width !
 
They are 225/40/18 which is the factory size for my car

At the moment I've ground down the arch screw, if I remove it completely will that weaken the bumper mounting?

Don't want to drop to 215 tyre as it will have to stretch a fair bit and will look really skinny
 
One of my mates had this done a few years ago, from memory he had 6mm removed.
It stopped his wheels scrubbing and was never a problem the few years he had the car afterwards.
It's like anything else if it's done properly then there's no problem.
 
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A different make or model of tyre may be narrower or wider , just because it's stamped 225 doesn't mean it is.
 
I ran 215 stretched on 18" ET42 wheels and they still rubbed too so I can understand why you'd go for removing a few mm's let us know how u get on
 
Thank you everyone for your opinions so far

I've never understood camber properly and there's no time like the present

If I increase negative camber won't my tyres wear on the edge that is riding on the road?

If 225 tyres can vary then does anyone know what the "true" 225 tyre is?
 
You have to have a lot of negative camber to wear the rears.

Best measure actual width measurements between current and prospective tyres.
 
Marshy said:
One of my mates had this done a few years ago, from memory he had 6mm removed.
It stopped his wheels scrubbing and was never a problem the few years he had the car afterwards.
It's like anything else if it's done properly then there's no problem.
Click to expand...

Any idea you can find out where he got it done?

I'm in Yorkshire and the only place I've found is in Essex lol

Gazwould said:
You have to have a lot of negative camber to wear the rears.

Best measure actual width measurements between current and prospective tyres.
Click to expand...
Oki doki il check them, thank you
 
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