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When you convert to 16" wheel and tyres you will be able to use the spare as any other normal tyre. It is speed rated at the moment to 80kms/hour because it's a different size than you other wheels.
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2/Jun/2011, 8:15 am
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Just to give some idea on what I did with the 17" setup.
I ended up taking the car the day after it rolled out of the dealers straight down to the tyre shop and had them fit Cooper's AT/Rs - 235/60 R17 size. Best part is the tyre shop gave me some money back for the factory tyres, bringing down the price of the Cooper's quite a bit.
Only have now done something about the spare to bring its size up a bit as well. Had another Cooper AT/R fitted in there - 215/70 R16 size. This does fit in the spare tyre well with a few mm's either side. Its important to note that the Cooper 235/60 R17 did not fit in the tyre well.
This supposedly brings the spare size closer to size to the main tyres size than what the factory setup had, as well as fitting a normal use tyre - hopefully this should allow full speed driving and towing on the spare tyre.
It's probably important to note that with the Cooper AT/R in the 235/60 R17 size, the diameter of the tyre is slightly higher than other 235/60 R17 tyres - 721mm in the Coooper vs 714mm for the standard size.
I also suspect you could possibly fit a 225 sized tyre in the spare tyre well, but a 235mm might be a bit too wide for the tray/luggage boards.
Basically, I think if you go for one of the other brands in a 235/60R17 sized tyre (that has a standard 714mm diameter) and the 215/70R16 in the spare (708mm diameter), then you should have a good setup without too much worry - particularly once your main tyres wear down a bit - then the diameters should be perfectly matched.
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30/Aug/2011, 11:54 pm
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Even after the tyre change, the speedo still reads too slow!!! I've setup the scangauge now to give an accurate speed reading.
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2/Sep/2011, 3:16 pm
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It should only read about 2 or 3kms slower with the taller tyres.
--- Tony X-891c
HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1
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2/Sep/2011, 6:07 pm
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Yep, thats about right. Scangauge itself required a 7% adjustment to get it spot on as well.
I'm pedantic about getting the speed spot on - I use cruise control a lot and like to sit at exactly the speed limit, not 2KM/Hr slower. The police are also pedantic - they'll book you for as little as 5KM/Hr over the limit...
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2/Sep/2011, 6:23 pm
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Dave,
So can Nissan adjust the speed difference by their scan tool?
My Nav is about 7kms out and its driving me crazy.
--- Tony X-891c
HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1
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3/Sep/2011, 7:10 am
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