Author Topic: New tyre time - wheel refurb? What to go for?  (Read 1247 times)

Offline Ceefeesh

  • Not said much yet
  • **
  • Posts: 89
Re: New tyre time - wheel refurb? What to go for?
« Reply #10 on: 14 September 2020, 20:58 »
You can't buy ps4s's in eighteen inch in the UK. You can only get ps4.
I know where there are a set of PS4Ss 225 x18 x 40 with a claimed 100 miles on them For sale for £350. I am told they were on a Focus RS? Sound right? .
« Last Edit: 15 September 2020, 04:37 by Ceefeesh »
MK 7.5, Indium Grey, 5dr, DSG, keyless, pan roof, voice activation.

Offline fredgroves

  • Forum addict
  • *
  • Posts: 4,585
Re: New tyre time - wheel refurb? What to go for?
« Reply #11 on: 14 September 2020, 22:23 »
You can seemingly get 235 40 r18 but not 225.

Offline Ceefeesh

  • Not said much yet
  • **
  • Posts: 89
Re: New tyre time - wheel refurb? What to go for?
« Reply #12 on: 15 September 2020, 05:16 »
They were definitely Pilot Sport 4Ss as I had a look on line after ai saw them to see the cost when new. I thought they were 225s but I may be mistaken. For sure they were 18” x 40.  I must check their width next time I am in if they are still there. I wondered if they were “old stock” and whether they were a bargain. It was about two weeks ago.
MK 7.5, Indium Grey, 5dr, DSG, keyless, pan roof, voice activation.

Offline dubber36

  • Forum addict
  • *
  • Posts: 5,414
Re: New tyre time - wheel refurb? What to go for?
« Reply #13 on: 15 September 2020, 09:02 »
I'd buy a new set of aftermarket 18" painted wheels with PS4s. Keep your original wheels in the shed ready to refit at trade in time. Dealers expect px's to come in with slightly damaged wheels, so any possible reduction in value won't come close to the cost of a refurb.
Red Mk6 gone replaced with a white Mk7 which has gone too. Green Mk2 here to stay.

Offline monkeyhanger

  • Forum addict
  • *
  • Posts: 6,266
Re: New tyre time - wheel refurb? What to go for?
« Reply #14 on: 15 September 2020, 10:15 »
You can seemingly get 235 40 r18 but not 225.

Correct. I tried to get 4S in 225 width for our Polo GTI. Costco confirmed that you can get PS4 but not PS4S in 225/40 R18.
Whey ya bugger! It's finally arrived after an 8 month wait....
MK7 R 5 door, manual, Lapiz Blue, Prets.

Offline fredgroves

  • Forum addict
  • *
  • Posts: 4,585
Re: New tyre time - wheel refurb? What to go for?
« Reply #15 on: 15 September 2020, 10:37 »
You can seemingly get 235 40 r18 but not 225.

Correct. I tried to get 4S in 225 width for our Polo GTI. Costco confirmed that you can get PS4 but not PS4S in 225/40 R18.

Yes, I have PS4 not PS4S on my GTD with 18's.

And I double checked the manufacturer website in case it had changed since then and before I wrote that yesterday too.

Offline sjw

  • Here all the time
  • ****
  • Posts: 270
Re: New tyre time - wheel refurb? What to go for?
« Reply #16 on: 15 September 2020, 13:29 »
Ok, new questions...

Anyone know of any good wheel refurb places in the Cambridge area?

Also, where is best to buy alloys? Presumably online somewhere? I know CMWheels is popular on here

Finally, what offset would fill the wheel arches most? The offset is never something I've been able to figure out, and I can never remember what the Brescia offset is

EDIT: One more question - if the PS4Ss are better than the P Zeros, but the PS4s are worse than the PS4Ss, am I going to notice any improvement from the 19" P Zeros to the 18" PS4s?

Damn Michelin and their confusing acronyms!
« Last Edit: 15 September 2020, 13:40 by sjw »

Online Guzzle

  • I live here
  • *****
  • Posts: 1,368
Re: New tyre time - wheel refurb? What to go for?
« Reply #17 on: 15 September 2020, 14:04 »
If you take a sectional view at 90 degrees to the outer face, through the wheel, offset is the distance between the centre line of the wheel and where it is mounted onto the hub. So the lower the offset, the smaller the gap between the centre of the wheel and the hub. Generally speaking, lowering the offset will push the outer face of the wheel further out and give the impression of the wheel arch being filled better. However, if you go too far and push the wheel face beyond the arches, not only will your car look daft, but it's probably an MOT fail too.

IIRC the factory Brescia's are ET49, so a higher offset would pull them inside the arches and a lower offset would push them further out. Don't forget to factor in any increase or decrease in wheel width if changing stock wheels for something else.

This is a popular calculator for working out this kind of thing;-

https://www.willtheyfit.com/

I think CM Wheels will only sell you their own products. If you want the more OEM stuff (Borbet, BBS etc) then you'll need to look elsewhere, such as Performance Alloys, Wheelbase etc (others are available).

What improvement in tyres are you looking for? Wet grip, dry grip, longevity, noise, fuel consumption?Improvements in one thing or more can lead to compromise elsewhere.
7.5 GTD

Offline Gnasher

  • I live here
  • *****
  • Posts: 1,009
  • Formerly GnasherVXR
Re: New tyre time - wheel refurb? What to go for?
« Reply #18 on: 15 September 2020, 14:11 »
As a rough guide though, if you get a 8.5" wide wheel, an offset of around 45mm will give you somewhere near a flush fitment.
2014 Golf GTI (PP) in Pure White with
Vienna Leather, Keyless Entry, High Beam Assist, Park Assist, Rear View Camera.

Milltek Exhaust, Eibach Sportlines, 19" BBS SR wheels

Offline sjw

  • Here all the time
  • ****
  • Posts: 270
Re: New tyre time - wheel refurb? What to go for?
« Reply #19 on: 15 September 2020, 14:57 »
Ok thanks. I've been doing a quick bit of research in the meantime. I can see that I can get an 18" set of Pretoria reps from CMWheels for £440. If I then get 18" PS4s from Blackcircles, I can save £70 per tyre (fitted) on the PS4s compared to the 19" PS4Ss, plus an extra £40 off if I buy 4 (which obviously, I will!) That's a £320 saving, with a £440 pound outlay on wheels, so I'm looking at, effectively, £120 for 4 new wheels. Then I could sort the refurb of my Brescias at a later date.

In terms of what I'm looking to improve, it's mainly grip, especially in the wet, but mostly from a standstill in all conditions. I know you can't floor it in these FWD cars, but at the moment, it's ridiculous - I can only really start accelerating once I've reached a decent speed.

I gather longevity is supposed to be better on the Michelins than the Pirellis.

Besides the benifits of PS4s, I'm also interested in the fitment of these wheels. The Pretoria reps are 8*45ET, vs my Brescia at 7.5*51ET. willtheyfit.com says that the Prets will therefore be around 12mm wider, which sounds great with regards to filling the arches. However, the diagram looks like this:



I have read that the PS4s provide better rim protection than the Pirellis, but this diagram looks like it might be negated by the offset of the wheel. If this is the case, then I'd be more inclined to look at the 235*40 R18 PS4s, but these negate much of the cost savings I explained in my first paragraph!

What do you think?