wheels and tyres 2.8

[zee3zee3]

hi been reading that a 2.8 need staggered wheels on 17" rims pre bmw specs - thinking of changing the 16" ones , but this is only on summer tyres on winter tyres 225/45r17 on 7.5 rims are fine per the specs ? anyone come across this before just thinking how does this work for insurance and manufacture specs etc

[BladeRunner919]

Staggered rims were an option on the 2.8. You'd have to ask your insurer about any insurance implications.

[Mike Fishwick]

Yes - I get the idea that you are thinking about changing your 16 inch wheels for staggered 17 inch, as per the factory option - but I do not have a clue as to what you mean by:

but this is only on summer tyres on winter tyres

If you want a sensible answer, you have to ask a sensible question . . .

[zee3zee3]

hiya thanks for the replies my query was that in the manual on summer tyres it advises they should be staggered rims with different size tyre , but in the same paragraph its says they can all be the same i.e 7.5 rims on 225/45 r17 provided that its winter tyres just puzzled as to why this is as I have access to a mint set of 17" bmw alloys off smaller engine z3 but they have summer tyres on so in theory if I change the tyres I can use them but is there such a difference between summer and winter tyres just thought it a bid odd ?

[gIzzE]

....on winter tyres 225/45r17 on 7.5 rims are fine per the specs ?

That is BMWs suggestion, narrower the better for winter.

90% of inurance companies are now fine with winter tyres, but I always call them to let them know I will be putting winters on.

[gIzzE]

Nothing stopping you using 17s with the same tyres on, the wider tyres on the rear helped add a bit of grip and increase some understeer, which many prefer, I have found going the same all round can be preferable, less tramlining, and a slightly more neutral handling balance.