- Joined
- Oct 26, 2014
- Points
- 181
- Model of Z
- Z4 coupe sport.
Showcase Show us your best zed photo!
- Thread starter Lee
- Start date
Love the size of your garages! 
what do you have on the rear 255's ? it looks great.
Back tyres are 245 40 17 Dunlop Sport Maxx RT as per pic. BTW I've also got 20mm spacers on the back
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Im running 225 45 17's all around. If I can go wider on an 8" wheel, why does everyone go down in highth when they go wider?
like you running 245 40 17 on the rear instead of 245 45 17.
like you running 245 40 17 on the rear instead of 245 45 17.
In all honesty I'm not the best to answer this but I think its due to original BMW wheels being staggered where the front are narrower than the back. To my knowledge I'm running standard sizes as what it left the factory???
To maintain the same rolling radius, if you keep the profile the same then the rolling radius will increase and the speedo will be innacurate.
So somewhere in my cars history before the wheels were changed, it had staggered wheels from the factory with lower profile tires on the rear than the front?
Yes, thats normal for a staggard set up from the factory
If its not staggered are they the same highth then. Im asking all this because my rims are 8" all around but Im checking to see if I can put a wider tire then 225 on my rear wheels. And if so you guys are saying I should drop to a 40 from 45 in highth
- Joined
- Oct 19, 2014
- Points
- 174
- Model of Z
- 2.2i Sport
At the risk of staying off-topic a bit longer, use this https://tiresize.com/comparison/ to see the difference a change of width/profile makes. And bear in mind that different manufacturers tyres may vary slightly in size even when they're the same nominal size.
Does the Vin. Decoder tell you what wheels your car left the factory on?
Tony.
Tony.
not that I can see Sean. What is S961A Special motor
AutoGleam 
that is a great look with the star wheels! thanks for the inspiration
Yep, back to pics
