Tyre Size

K

k.leeming

Member
Just a quick question.

My tyre sizes are smaller at the back than the front.

225/40/R18 FRONT
225/35/R18 BACK

Who has bigger at front and smaller at back?
OR
Who has bigger at back and smaller at front?
 
You've got the wrong rears somehow.

Even winter tyres would only be the same rears as front.

Your rears should be 255/35 not 225/35.
 
jjazzza said:
can someone tell me please why you have diff size tyres front and rear im a newbee cheers
Click to expand...
Staggered wheels/tyres are for both looks & performance.

A wider rear tyre gives a bit more grip, and the lower profile (to keep the overall diameter the same) reduces flex in the sidewall.

You can put a very wide tyre on and create less oversteer / more understeer (assuming no geometry changes), or vice versa.
 
mmm-five said:
jjazzza said:
can someone tell me please why you have diff size tyres front and rear im a newbee cheers
Click to expand...
Staggered wheels/tyres are for both looks & performance.

A wider rear tyre gives a bit more grip, and the lower profile (to keep the overall diameter the same) reduces flex in the sidewall.

You can put a very wide tyre on and create less oversteer / more understeer (assuming no geometry changes), or vice versa.
Click to expand...


This. And the tyres are different sizes because the wheels themselves are different sizes... But not all Zs have a staggered set up, I could be wrong but I think it was just the 3.0i prefacelift, and the Sport facelift models that had staggered as standard ? Of course the original buyer may have been able to spec staggered wheels... I think I just confused myself a bit :oops:

Kane - as above, wrong size tyres... Do the rears look stretched ? Your sig says you have 19 inch wheels which is wrong, right ? Thought you had MV2s...
 
i just picked up my z4 on monday 46,000 miles presently it has 225/45/r17 run flats so im looking to replace them with normal tyres but havent got a clue :o :o
 
jjazzza said:
i just picked up my z4 on monday 46,000 miles presently it has 225/45/r17 run flats so im looking to replace them with normal tyres but havent got a clue :o :o
Click to expand...

Non-runflats will be the same size, it's choice of brand that you need to make. Forum favourites are Vredsteins, Falken 453s and Michelin PS3s. Loads of threads on this topic if you search.

Introduce yourself in the newbies section with some pics too, we're a really friendly & helpful bunch :thumbsup:
 
Only facelift sport and M cars had staggered setup as standard. Pre facelift and 3.0si SE were 17" rims standard, square setup :thumbsup:


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