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Different tyre sizes
PJ
 

Posts: 70
Joined: Jul 2011
Location: Aberdeenshire
Post: #1
Different tyre sizes

Hi I've been offered cheap winter pirelli tyres for my 20" wheels but they are not quite the same size. The existing tyres are 245 45 r20 but the winters are 255 45 r20. Is is ok to use these - the tyre guy says no problems but I'm not sure?

Arrived! OG 5dr Dynamic, shadow chromes, pano roof and few other bits.
18-10-2011 08:20pm
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exigejoe
 

Posts: 287
Joined: Oct 2011
Location: Tacoma/Fircrest, WA
Post: #2
RE: Different tyre sizes

its actually close to the stock 19 in overall diameter..its fine. If i were you i would go with the 245 with 50 profiles.
No problems you should e fine.

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18-10-2011 08:28pm
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bell-auto-services
 

Posts: 570
Joined: Nov 2010
Location: Yorkshire
Post: #3
RE: Different tyre sizes

The 245/45/20 has a diameter of 729mm
The 255/45/20has a diameter of 738mm
The stock 235/45/19 has a diameter of 741mm

So as said they are not far away but may make the speedo very slightly out depending on your shoice.

Pete

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18-10-2011 09:26pm
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PJ
 

Posts: 70
Joined: Jul 2011
Location: Aberdeenshire
Post: #4
RE: Different tyre sizes

Thanks guys they are £500 cheaper than the 245 45s so will go for these and err on the side of caution with my speed!

Arrived! OG 5dr Dynamic, shadow chromes, pano roof and few other bits.
18-10-2011 10:29pm
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