Any suggestions where to find good Porsche wheels and winter tyres at a good price for a Cayman or Boxster?
Sourcing good used wheels and winter tyres
- Thread starter GT3RS Scotland
- Start date
clyde
New member
My son has a set of 17 inch wheels and N rated winter tyres from his 2.7 Boxster. He bought them new from Edinburgh PC and had them on for, I think, two winters covering only 4 or 5 thousand miles on them. The Boxster's gone and they've been stored in my dry and dark (so no UV degradation to the tyres) basement for the last couple of years, they are completely unmarked and look like new.
He's back from holiday tomorrow, if you are interested pm me and I'll pass it on to him and he can give you pictures and a price.
I'm in the Falkirk area
He's back from holiday tomorrow, if you are interested pm me and I'll pass it on to him and he can give you pictures and a price.
I'm in the Falkirk area
Thanks for the offers. Really looking for something a bit bigger though. Better for grip and responsiveness.
Chrishazle
Active member
Normal comments I've seen about winter tyres is smaller rims and "thinner" tyres are better than big rims and wider tyres! I see a lot about this on the 2 MB forums I frequent, as many MB's are front engine rear wheel drive automatics, about the worst combination you can get for slippery conditions! My summer wheels for the shopping trolley are 17", but my winter set are 16's!
Ebay is one place to look, but you need to know the exact spec you're looking for - rim size/profile, offset (ET), bolt circle diammeter, number of bolts and bolt size/head profile. For example - from MB as I'm not up to speed on Porsche wheels - C class W203 wheels will not fit a C class W204 due only to different bolt size!
Ebay is one place to look, but you need to know the exact spec you're looking for - rim size/profile, offset (ET), bolt circle diammeter, number of bolts and bolt size/head profile. For example - from MB as I'm not up to speed on Porsche wheels - C class W203 wheels will not fit a C class W204 due only to different bolt size!
For snow and deep water I agree narrower is better. For tarmac closest to the standard tyre will give the closest driving experience to that designed. So it probably depends on what the car was designed for and how you intend to use it. I don't intend to use the Cayman in significant snow as it bottoms out too quickly. I want the winter tyres for cold, ice and frost (and snow if I misjudge the conditions). The Disco is better in snow. The Cayman is for fun driving. Although driving in snow can be fun. Until you get it wrong.
]Hi
I have a friend in Colchester Essex who's got a set of Cayman S - Wheels x 4 - For Sale
2 x 235 x 40 x 18 with 8mm Tread - N1 - Continental Winter Tyres
2 x 255 x 40 x 18 with 6mm Tread - N1 - Continental Winter Tyres
The wheels will fit a Boxster 987 - Cayman 987 and wheels and tyres are in Excellent new Condition
He's after £750 but maybe up for offers too and can be contacted on Colchester 01206 868233 and ask for
Robert and your welcome to say you heard the details from Kevin.
I have a friend in Colchester Essex who's got a set of Cayman S - Wheels x 4 - For Sale
2 x 235 x 40 x 18 with 8mm Tread - N1 - Continental Winter Tyres
2 x 255 x 40 x 18 with 6mm Tread - N1 - Continental Winter Tyres
The wheels will fit a Boxster 987 - Cayman 987 and wheels and tyres are in Excellent new Condition
He's after £750 but maybe up for offers too and can be contacted on Colchester 01206 868233 and ask for
Robert and your welcome to say you heard the details from Kevin.
Thanks for the info chaps. Did some more research and discovered that 20" wheels are the best. So ordered some tyres for them. So far they are pretty sweet. Less wheelspin in third gear in the wet than the MPSCs. Good for keeping the seat unsoiled.
In some cases bigger is better it seems G.
In some cases bigger is better it seems G.
924Srr27l
New member
GT3RS Scotland said:
Any Dedicated Winter tyre compound and tread pattern will be better than an all out Summer Michelin Pilot Sport Cup Tyre, but 20"
wheels are Huge ! and usually as a few folk on here have referred smaller diameter and bigger sidewalls is the way to go for colder, wet and Winter conditions. I wouldn't entertain 20's on a Boxster in the dry!
R
This raises an interesting question: Why do Porsche, and other manufacturers, fit ever bigger diameter wheels to their cars? Is it for dynamic or marketing reasons?
924Srr27l
New member
GT3RS Scotland said:
Both,
There's a Post on the 944 section regarding the disadvantages of big wheels & Wide Tyres but this is based on the old Transaxles (Now a 40 years old design!)
https://www.porscheclubgb.com/forum/tm.aspx?m=942427
It's lengthy and does contain a fair amount of sceptics and abuse etc...but if your bored for 20+ minutes you may wish to read some of it.
A quick answer is partly to stop Overheating and part Styling, looks and fashion also...But it's quite difficult to explain as many people automatically assume a wider tyre
has a bigger contact patch compared to a narrower tyre but it doesn't exactly.
R
Interesting thread. Good to see some numbers in the comparison.
Big wheels do allow bigger brakes and on a smooth flat surface will give less tyre distortion and so more grip. This may give lower lap times at the Nurburgring? Particularly for high powered cars. Which for some Porsche models is important. I wonder if anyone has published lap time comparisons between same tyre outer dimensions but different wheel diameters AND with the suspension geometry optimised for each tyre AND optimised brake size for each wheel size?
Its certainly a lot more confidence inspiring driving a car with taller tyre sidewalls that does not try to swerve you off the road at every change of camber. But how are they going to sell the next generation of car if it has the same size wheels as the old one?
Big wheels do allow bigger brakes and on a smooth flat surface will give less tyre distortion and so more grip. This may give lower lap times at the Nurburgring? Particularly for high powered cars. Which for some Porsche models is important. I wonder if anyone has published lap time comparisons between same tyre outer dimensions but different wheel diameters AND with the suspension geometry optimised for each tyre AND optimised brake size for each wheel size?
Its certainly a lot more confidence inspiring driving a car with taller tyre sidewalls that does not try to swerve you off the road at every change of camber. But how are they going to sell the next generation of car if it has the same size wheels as the old one?
Don't want to get into debate as to who is wrong and right ...all I know from experienced skinny is best used to run Saabs (96) back in the 70's and never ever got stuck in snow once way before winter tyres where even heard of here .That is how the Swedes dominated the rally scene for years all be it on studs shown but skinny tyres924Srr27l said:gordon said:
Saab's ? Wow there's a blast from the past.... The current WRC boys have it so easy !
Narrow width, tall sidewalls and Studs!
R
924Srr27l
New member
GT3RS Scotland said:
Yes it interests me too to understand what things are actually doing, and why? rather than follow what we see, read and are told especially the marketing
route of the "pied piper".
I think the main difficulty to explain the real differences of wide tyres is the cross over between road and Racing cars, and then of course there's Road car's that are not Racing cars but they can and do participate on Race tracks (Trackdays)
All 3 of these scenerio's ask for 3 different types of car ideally, to have the best in each discipline. For sure a compromise can be made and a road car can go on a track day as well as the road but it depends what it is? in regard to whether it will be safe, survive the torture and be a viable option.
In light of Porsche's they are one of if not the best equipped to be used with more vigour and cope and perform well on a Race track than many other manufactures.
Especially the high End GT Models etc..
High Performance car's with big diameter and wide wheels and wide Tyres will excel on a track more than narrow ones, and vice versa narrower ones on the road
will produce characteristics that make the car easier, safer and do not need as much concentration.
The first post in that Thread illustrated a Golf when fitted with 15, 16 17 18 and 19" Rims and there were some tests done to illustrate how much slower the car
was to 60 and 100mph in acceleration when fitted with Heavier Tyres, Yes the Laterial cornering was a higher figure with the big hoops and wider tyres but not by much
So a timed section of public roads would be an interesting test to see if the lighter wheeled car was faster or not?
So with this all in mind I decided to go down a route to build and set up a light car (924) on light narrow wheels and tyres all for Road use and due to it's age (1987)
it has no electronic aids and Manual steering etc..
It turned out to be an extensive restoration and a vastly modified project which took 3.5 years to complete! Many avenue's to save weight were expensive and a
little extreme to say the least, and it may not of turned out that well. However it did and now I can really feel why losing 250kg was worth doing as it's performs very well
the Engine was also changed and tuned so the final power to weight from loses and more power is 200bhp per ton.
Getting back to wide wheels, or not in this case as all 4 are 7x16 and all 4 tyres 205/55/16 which is Narrow for a Sports car old or new, but as I suspected the car
does not need wider tyres as it handles and drives very well on these. I did try a 17" Set a month ago but it "Killed" the performance very noticeably from the extra weight
of 1" more diameter but with wider rims & tyres.
R
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