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Brutus



Member Since: 10 Nov 2015
Location: Cambridgeshire
Posts: 67
England 2006 Range Rover Sport TDV6 Autobiography Java Black
R22 / Z22

I understand the R means radial but, what's the difference and which is best? Confused
Post #485970 Thu Jan 28 2016 9:54pm
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Brutus



Member Since: 10 Nov 2015
Location: Cambridgeshire
Posts: 67
England 2006 Range Rover Sport TDV6 Autobiography Java Black

Bump
Post #485988 Fri Jan 29 2016 9:12am
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RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 8983
United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

R and Z could be the speed ratings - 106mph and 150+mph respectively. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed
Post #485990 Fri Jan 29 2016 9:14am
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Brutus



Member Since: 10 Nov 2015
Location: Cambridgeshire
Posts: 67
England 2006 Range Rover Sport TDV6 Autobiography Java Black

Well, I understand the R means radial which means the steel strands run at 90 degrees to the rotation of the wheel but I have no idea what the Z means or even which is best.

I suppose Z could mean speed rating as I believe most tyres are radial nowadays.

Also, I'm about to purchase Perelli Zero 285/35/Z22 which is why I ask the question.
Post #485995 Fri Jan 29 2016 10:45am
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Col



Member Since: 02 Sep 2012
Location: Hawkes Bay NZ
Posts: 4974
New Zealand 2013 Range Rover Sport Supercharged Autobiography Santorini Black

Try This, click on the guide section as well.

https://www.tyreleader.co.uk/tyres-advices/tyre-zr-or-r


Cheers
Col
Post #486002 Fri Jan 29 2016 11:32am
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Brutus



Member Since: 10 Nov 2015
Location: Cambridgeshire
Posts: 67
England 2006 Range Rover Sport TDV6 Autobiography Java Black

Many thanks Col. Interesting reading
Post #486128 Sat Jan 30 2016 1:44pm
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