Bmw E38 728I Alloys

[d_a_n1979]

Hello

I have a set of 18" alloys on my 728i currently; 8J up front and 9J at the rear.

They're the multi-spoke alloys with quite a deep dish (unsure of the exact model/name)

What I'd like to know is that are these wheels that came on the 7 series and also what are the ideal tyre sizes for them?

Currently they're running 235/45/18's up front and 255/45/18's at the rear but then I look at alloy wheel websites they show tyres with alloy packages to be 235/50/45 up front and 255/45/18 at the rear?

Also; does it make sense to keep 18" alloys on the 728i or would 17's be a better compromise? I think the car came originally with 16" alloys as the spare wheel is a 16" alloy!

Thanks

[Guest Mister Dabsy]

You're ok with 45's matey... I made the mistake of using 40's on mine and it threw the speedo out (60mph at the clocks was just over 50 LOL)