Right Tyres for 17'' Spoked Alloys on GT - Alfa Romeo Forum
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(Post Link) post #1 of 5 Old 03-02-10 Thread Starter
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Right Tyres for 17'' Spoked Alloys on GT

I want to buy a second hand set of 17'' Spoked alloys for my GT. I know the standard tyre for this wheel is 215/45/17. I've also seen GT's running with 225/45/17's on the same alloy.
What's the best size tyre?

Will all 17'' Alfa Spoked Alloys be able to handle the wider tyres or does this alloy vary between 147, 156 & GT's?
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Not sure about the GT but I've just fitted 225/45 x 17 to my 156 with 7" Spoked Alfa rims. The taller side wall does give a slightly softer ride but it does depend on the make of tyre.

They went on without any fouling, rims have a ET 40.5.
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(Post Link) post #3 of 5 Old 04-02-10 Thread Starter
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I dug out an old GT brochure and can see that the 225/45/17's were standard for V6's, whilst the 215/45/17's were the upgrade option for all other GT models. Anybody see any reason why putting 225/45/17's on a GT JTD would be a bad idea? Presumably it's fine??
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I'd be inclined to stick with the slightly narrower tyre for several reasons:

1) Insurance - some companies have been known to classify a non-standard (or non-option) tyre size as a 'modification';
2) Cost - come replacement time, bigger tyre = bigger (usually...!)
3) Wear - bigger tyre = heavier = more loading on suspension
4) Steering effort - bigger tyre = heavier low-speed steering

I assume the V6 had the bigger tyre due to higher power. Whether any other changes were made to the spec to allow for that (eg. power steering pump, etc.) I don't know - but there is very likely someone on here who does
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I've got 225's on my 17" GTA wheels. To be honest I think its better to go wider as its more grip which we all no = more fun
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alloys , spoked , tyres

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