Z4 e85 / e86 3.0 16" alloy wheel tyre fitment and advise

kis

Veteran
 Surrey / West Sussex Boarder
Hi all,

Recently purchased a Z4 e85 3.0i SMG. And what a lovely car! Getting on for well over a decade and still looks the biz! Anyway I digress. The issue is I do a lot of miles. Not sure exactly but let's say 20-25k as an approximate per annum. I used to have a 320Ci and had 16" on these. I used to go through a full set of tyres pretty much every year. These were Michelin 205/55/R16 PS3's (Pilot Sport 3) and served me well, never felt like I was slipping or loosing grip. For a full set including fitting you're looking at approx. £300.

For a full set on the Zed with 18" staggered fitment is... Well much more! Hence the change to Z4 16" (don't worry I'm still keeping the 18").

My questions (but they go hand in hand):

Should I stick with runflats? I know the ride will be harsher and the tyres themselves a little more expensive but not enough to break the bank. I'm a little concerned if I move away from the RFT and then having a blow out (God forbid). With the ride being so low as it is, slightly scared I might not have enough clearance and end up doing serious damage? I don't want to ground my car!

This thread was useful in regards to clearance, as I'm running the 18" at present. However with the 16's on it'll be a slightly different ball game.
http://www.z4-forum.com/forum/viewtopic.php?t=41612
Any insight/info would be much appreciated.

Secondly tyre recommendations, as mentioned before I used to have 205/55/R16 on the 3 Series. I've seen some posts on the different sizes and I think I'm right in saying 225/50/R16 is the standard for the Zed? Any particular tyres that anyone recommends? I'm after good grip vs. affordability. Not overly worried about wear. I've got some old Bridgestone Potenza's on the set I've got at the moment.

Finally, but more of a note I've trial fitted the wheels (to the front) and there's about 5mm clearance from the inside of the alloy wheel to the calliper. I know the 3.0si or if you've upgraded your brakes clearance might be an issue but think I've managed to get away with it. Thread below was very helpful:

http://www.z4-forum.com/forum/viewtopic.php?t=21437

Many thanks in advance!

Kis
 
Welcome! Interesting thoughts but have you priced tyres up? You could get 18" non rft for not much more than your £300 for the 16". Or if rfts are a must then surely the additional cost would be out weighted against the additional cost of a set of 16" wheels? You have bought the car to enjoy so seems a shame to put 16s on and spoil the looks that sold you the car? Alternatively 17" could make a good compromise as both the 103 and 106 look well on the z.
 
A full set of non-run flat Avon ZZ5 staggered 18" are £304 delivered from Oponeo. Continentals are a only a few £s more. I pay about £40 for fitting and balancing at my local indy tyre fitters. I would forget the 16" and RFTs...it will be the best thing you ever do to your Zed as many on this forum will confirm. I have been running 18" Avon ZZ5s for 18 months and 8500 miles now with no issues and no punctures. Enjoy the SMG....I love mine ! :thumbsup:
 
Thanks for the replys.

If I'm running like for like then PS3's will be just over £400 and with fitting approx. total of £450
Maybe if I get a good deal could be closer to the £400 mark. I guess it's not a major difference considering I get to keep the 18's on there - which Paddy has quite rightly pointed out.
paddy wright said:
You have bought the car to enjoy so seems a shame to put 16s on and spoil the looks that sold you the car?

I'm pretty comfortable and happy with the PS3's. If I'm to stay with the 18" setup are there any tire recommendations? I've had a quick browse and GY F1's, FK452 (now FK453) and of course the Michelins keep coming up. Also heard a few recommend the UniRoyals. Not too au fait with Avons (sorry Pariot66!). From what I've seen FK453 and UniRoyal RS3 are pretty comparable, with F1's being a grade higher and then the Michelins being the best?

I've seen a comparison from FK452 to F1's (thread: http://www.z4-forum.com/forum/viewtopic.php?f=2&t=66815) but this seems slightly biased anyway considering Flakens are a Mid and F1's are Premium?

Anyone with direct comparison from FK453 and RS3?

Thanks in advance :)
 
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