Author Topic: Lightweight 18inch alloys upgrade  (Read 2058 times)

Offline JMS

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Re: Lightweight 18inch alloys upgrade
« Reply #10 on: 14 January 2022, 19:04 »
Thanks for the inputs, will check the mentioned brands as well.
But before that, could you give me advice on the size of the alloys ?

From “J” perspective I think I can go with 7, 7.5 and 8.
For “ET” my research suggested 45.

For example, the Ultraleggera ones that I’m looking at are    8Jx18" 5x112 ET45
Is this the optimal size ?

And as a side question, my Golf is Indium Gray, I am planning on getting graphite (oz Color) alloys. Anyone thinks that would look bad ?

Thanks !

8J (8”) width may mean you need 235/40/18 tyres rather than the more common OE size of 225/40/18. (To avoid sidewall stretch, which would change the handling for the worse)

You can get Michelin Pilot Sport 4S’s in both sizes though. Wider wheels & tyres will obviously weigh a bit more. If it were me & I was buying new,I would go for 7.5J

the effect on circumference (speedo reading) will be negligible though.

These Team Dynamics look a good price (I have been eyeing them up for a couple of months)
https://www.facebook.com/marketplace/item/511992566650969/
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Offline solano

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Re: Lightweight 18inch alloys upgrade
« Reply #11 on: 15 January 2022, 10:33 »
Thanks, I will be looking for 7.5J then. What about this "5x112" parameter? I know it has to do something with the lugnuts, so not sure if this has to always 5x112?

Offline jv

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Re: Lightweight 18inch alloys upgrade
« Reply #12 on: 15 January 2022, 10:52 »
Yes  :smiley:
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Offline SRGTD

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Re: Lightweight 18inch alloys upgrade
« Reply #13 on: 15 January 2022, 11:11 »
Thanks, I will be looking for 7.5J then. What about this "5x112" parameter? I know it has to do something with the lugnuts, so not sure if this has to always 5x112?

As @jv said, it always needs to be 5x112 for your car.

5x112 is the pitch circle diameter (PCD). The 5 refers to the number of wheel bolts / bolt holes and the 112 refers to the diameter - measured in millimetres - of the imaginary circle that passes through the centre of each wheel bolt or bolt hole in the car’s wheel hub assembly - see diagram below. If it’s any different to 5x112 then the bolt holes in the wheel won’t line up with the bolt holes in the Golf’s wheel hub assembly so it won’t be possible to attach the wheels to the car.



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Offline solano

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Re: Lightweight 18inch alloys upgrade
« Reply #14 on: 15 January 2022, 14:28 »
So after a bit of research, most of the suggested brands (Bola, Team Dynamics, Konig, Motec) are not available in my country. Only OZ and Borbet are available.

I like the OZ styling, I can choose between "Ultraleggera" and "Hyper GT HLT", which are the exact same price and both designs are ok by me.
But none of them are available with ET45. I can choose between ET41 and ET51 - for J7.5

For J8, I can have ET45, but there is some discussion in this thread if J8 is OK for 225/40/18 tyres.
Also the available models are a bit more: Superturismo, Alleggerita HLT, Indy HLT

Any advice would be appreciated.

Offline jv

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Re: Lightweight 18inch alloys upgrade
« Reply #15 on: 15 January 2022, 14:59 »
8J is perfect with 225/40
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