Hi Guys,
I have just purchased some Z4M alloys which have 255/40 18 tyres on the rear. My mate mentioned he might have some new ones that had been ordered incorrectly at work and that i could have them for cheap. The problem is, they are 255/45 18, so i am just wondering if there would be a problem if i fit these?
Cheers
Neil
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Tyre Profile
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mmm-five
- Lifer
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Re: Tyre Profile
If it's not for an ///M then 255/40r18 is the wrong size anyway, and you should be using 255/35r18.
The difference between an OEM 255/35r18 and your mate's 255/45r18 is about 8% (which is a lot), and your sidewall will be 15mm taller than standard so may cause rubbing.
The difference between an OEM 255/35r18 and your mate's 255/45r18 is about 8% (which is a lot), and your sidewall will be 15mm taller than standard so may cause rubbing.
Trigger’s Z4MC
Some bits now over 163,000 miles, some less than 1,000 miles.
Individual Ruby Black, Individual extended champagne leather, plus many options
Some bits now over 163,000 miles, some less than 1,000 miles.
Individual Ruby Black, Individual extended champagne leather, plus many options
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WLH
- Lifer
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Re: Tyre Profile
255/45 18 will almost for sure cause rubbing issues. Those tire will have an overall diameter of 27" where the car is designed for a 25" diameter tire.
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soundboy10
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Re: Tyre Profile
Yeah it's not an ///M that i have, just a standard 3.0.
Thinking i should maybe give them a miss then, as they are currently slightly bigger than what i should have. So to confirm, i should have 255/35r 18??
Cheers
Thinking i should maybe give them a miss then, as they are currently slightly bigger than what i should have. So to confirm, i should have 255/35r 18??
Cheers
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LeeME3
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- Location: Lincoln
Re: Tyre Profile
I'm running 255/40 and wouldn't want to go any more than that (on a 3.0i)
2003 Z4 3.0i
Done: DIY Aux cable, stubby, sound generator foam delete, gaptech, brodit pro, M wheels, ditched RFTs
To do: Steering wheel audio.
Done: DIY Aux cable, stubby, sound generator foam delete, gaptech, brodit pro, M wheels, ditched RFTs
To do: Steering wheel audio.