Tire sizes and recommendations

UK forum for general and technical discussion about the Z3 roadster
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Cooper01
Joined: Tue 29 Apr, 2014 08:06
Posts: 163

  Z3 roadster 3.0i

Tire sizes and recommendations

Post by Cooper01 »

The 2001 2.2i comes with 225x50x16 wheels and I am thinking of changing this to 225x65x16. Why?

1. to give the car a couple of cm lift
2. increase side wall to make the steering a bit lighter with more 'give' or free play
3. may assist with tramlining which can happen on bumpy or irregular surfaces
4. Gives me options for purchasing tires as the 50s are rare and more expensive

So, had anyone done this before and what was the result. Did it proportionally affect the looks of the car?

Looking forward to your replies.

Cooper
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BladeRunner919
Joined: Fri 17 Feb, 2012 20:18
Posts: 2225

  Z3 roadster 1.9

Re: Tire sizes and recommendations

Post by BladeRunner919 »

Your speedo will be incorrect (you'll be going faster than indicated).
Cooper01
Joined: Tue 29 Apr, 2014 08:06
Posts: 163

  Z3 roadster 3.0i

Re: Tire sizes and recommendations

Post by Cooper01 »

BladeRunner919 wrote:Your speedo will be incorrect (you'll be going faster than indicated).
damn, forgot about that! Thanks. :oops:
fish
Joined: Thu 07 Feb, 2013 17:04
Posts: 177

  Z3 roadster 2.2i
Location: Sandbach, Cheshire

Re: Tire sizes and recommendations

Post by fish »

Likely your insurance would be invalid too, in the event of an accident etc…..
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692DPG
Joined: Sun 09 Mar, 2014 19:30
Posts: 94

  Z3 roadster 2.8
Location: Lancashire

Re: Tire sizes and recommendations

Post by 692DPG »

I would stick with standard size but would seek to identify a make of tyre that suits the Z3's dynamics. Sure there are a number of threads on here covering the subject.

Good luck either way, Dave
1997 (R) BMW Z3 2.8 Roadster - weekender
Hell Red/Imola Red/Black Z3M leather - 2 door, manual
2005 (55) Porsche 997 C4S 3.8 - man-o-porsche
Arctic Silver/Black leather - 2 door, manual
2017 (67) BMW M140i - daily
White/Black leather - 3 door, manual
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