Wheel offsets

[AdamsX5]

Going to buy some winter wheels but just want to make sure my 7 series winter wheels won’t be suitable for the E70.
The wheel offset is 30 for the wheels I have and 37( for the 275/20 wheels and 40 (315/20 wheels) for the wheels on the car now.Does the lower offset of the wheels I have mean they will be ok or will they hit the fenders and be too outside than in.


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[Leslie]

I think the hub size is a little bigger on 4x4 cars bmw is either 72.6 or 74.1 I think.Id try one on ,see if they even fit over the hub centre as offset is also related to width and the 7 wheels will be narrower to start with so won't sit out much if any further I suspect if they are et30.

[StuBeeDoo]

It's not just about the offset, the width of the wheel(s) is a factor as well.

I find this website is invaluable when choosing alternative wheels.

[AdamsX5]

[quote="StuBeeDoo"]
It's not just about the offset, the width of the wheel(s) is a factor as well.

I find this website is invaluable when choosing alternative wheels.
[/quote]
The ones I have are 18x8j
The ones which are already on are 20x10 and rears 20x11j. The 18 wheels for E70 are sized at 18x8.5j


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[Alan Gunn]

I would just test fit one.

[AdamsX5]

[quote="StuBeeDoo"]
It's not just about the offset, the width of the wheel(s) is a factor as well.

I find this website is invaluable when choosing alternative wheels.
[/quote]
According to website they should be away from suspension and poke out less. The speedo error is 6%.  30mph will read 32. Due to tyres not wheels. If I get tyres same size as oem 18s then error is reduced:


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[sid10]

I would stick to Genuine X5 ones as the insurance firms are just looking for excuses, second hand sets can be had for a few hundred pounds in 18" form and selling your 7 series ones will possibly bag you some profit.

[AdamsX5]

I’ve just purchase some for £360 for 19”.
The tyres had 4-5mm which wasn’t a problem but I didn’t check the date of manufacture of tyre. They were made late 2011 that’s 7 years ago.
Do I have to change them or run them on the car.
My silly mistake as alloys seemed ok  I didn’t  check tyres age.


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[AdamsX5]

The pics are below. No sign of crazing but on one the sidewall is scraped or aged more than others.
3rd pic. The outer edges seem more worn in some. Would you guys use them ?



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[StuBeeDoo]

Would I use them?  Yes, but only for this coming winter.  4-5mm is getting low for winter tyres.  The legal limit is still 1.6mm, but IIRC the recommendation (can't remember where I read it) is that winters are replaced at 4mm.  Then I'd budget for new winter tyres this time next year.  £360 just for the rims isn't that bad IMO - I paid over £700 for 17" wheels & winter tyres with 5-6mm on for my F25.

From an MOT/legal POV I think I'm correct in saying that the date code isn't as much of an issue as visible cracking of the tread or sidewalls is.  I'm sure if I'm wrong someone who knows the law better than me will be along to correct me.

[Graeme]

From the Michelin website:
A few milestones and tips:
1- Keep five years in mind
After five years or more in use, your tyres should be thoroughly inspected at least once per year by a professional.
2- Ten years is a maximum
If the tyres haven't been replaced 10 years after their date of manufacture, as a precaution, Michelin recommends replacing them with new tyres. Even if they appear to be in usable condition and have not worn down to the tread wear indicator.
This applies to spare tyres as well.
3- Proper care expands a tyre’s lifespan
If you take good care of your tyres' air pressure, tread wear, alignment, and so on, you can increase their longevity.
4 Check our Scheduled care tips
5 For original equipment: follow the vehicle manufacturer’s tyre replacement recommendations.
6 How to check the manufacturing date - Look for the DOT number on your sidewall.

Had a caravan tyre blow out a few years ago at 4 years old and it did quite a bit of damage to the van.  Insurance loss adjuster said they wouldn't pay out if tyre older than 5!

Who to believe!!!

Graeme

[AdamsX5]

[quote="Graeme"]
From the Michelin website:
A few milestones and tips:
1- Keep five years in mind
After five years or more in use, your tyres should be thoroughly inspected at least once per year by a professional.
2- Ten years is a maximum
If the tyres haven't been replaced 10 years after their date of manufacture, as a precaution, Michelin recommends replacing them with new tyres. Even if they appear to be in usable condition and have not worn down to the tread wear indicator.
This applies to spare tyres as well.
3- Proper care expands a tyre’s lifespan
If you take good care of your tyres' air pressure, tread wear, alignment, and so on, you can increase their longevity.
4 Check our Scheduled care tips
5 For original equipment: follow the vehicle manufacturer’s tyre replacement recommendations.
6 How to check the manufacturing date - Look for the DOT number on your sidewall.

Had a caravan tyre blow out a few years ago at 4 years old and it did quite a bit of damage to the van.  Insurance loss adjuster said they wouldn't pay out if tyre older than 5!

Who to believe!!!

Graeme
[/quote]
So basically I’ll be ok for a year or two before I need to change tyres. Don’t do much mileage(3-4K) so should be good for at least 1-2 years.


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[Graeme]

Personally I'd replace them with four new matched winter tyres.  A "professional" inspection involves removing them from the rims to look for internal damage caused by a nail or similar, or hitting something on the road/pothole damage. That'll be £10-20 a wheel, then what? It's just not worth it.

Graeme

[Leslie]

Those wheels look tidy anyway  A thing about winters is they use more natural rubber in the tyre as its more flexible at low temps but unfortunately it ages quicker too cracking and letting water into the cords which rots them .I've had  winter tyres that looked fine but couldn't stay inflated more than a few days, new tyres sorted it.
As said get the winter out of them maybe next summer too to use them up and then get a new set of winters for next winter as by that stage they will be well past it and winters with less than 4mm are much less effective in snow anyway.

[AdamsX5]

[quote="Leslie"]
Those wheels look tidy anyway  A thing about winters is they use more natural rubber in the tyre as its more flexible at low temps but unfortunately it ages quicker too cracking and letting water into the cords which rots them .I've had  winter tyres that looked fine but couldn't stay inflated more than a few days, new tyres sorted it.
As said get the winter out of them maybe next summer too to use them up and then get a new set of winters for next winter as by that stage they will be well past it and winters with less than 4mm are much less effective in snow anyway.
[/quote]
Just been on eBay and even the wheel sets costing over £600 have tyres from 2012.
Most were around 6-7years. One from 2008 and asking £900


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