Tyre size

Howard B

Howard B

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I am looking at replacing the tyres on my Fiat Ducato PVC and found the Michelin Agilis Cross climates at £101 per corner. My current size is 215/70/15, however the 225 width are the same price. I know some pople have gone up a size for the additional loading, but my handbook states the size for a recreational vehicle is 215. Has anyone gone up a size and if so, what was the response from insurers?
Thanks
 
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Skinny wheels on cars have special tyres that have a very soft high grip compound so that they give similar grip levels to the rest of the tyres on the car. It's also why they wear down to the canvas if you try to do much more than 50 miles on them.
 
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Emmit said:
"The 'Skinny' wheels spoken on here are the same diameter as original."

I didn't say you were talking about skinny wheels. I was pointing out that when a skinny wheels are used in an emergency, they are the same wheel diameter as the other three being used at that time.

Whereas, using a wheel and tyre of a different diameter to the other three (especially on the same axle) is creating an imbalance across an axle that I personally would not wish to do.
You could of course buy 2 "Ten a penny" wheels and tyres and, in the case of a puncture, you could change both wheels on the same axle and you wouldn't have a problem. Except that, with 15" wheels and tyres on the same axle, especially on the rear, you might find that you are overladen. That could create further problems.
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Understood. It was more out of an interest rather than an intention.

We have a Nissan micra and last week I had to put the space saver on. I noted that although the rim was bigger than the original the overall diameter was still smaller. I know this because I had to Jack the car up higher when refitting the new tyre.

It just got me thinking why don't they have them for vans. Yes they are a bit rubbish but better than the terrible repair kits.
 
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Back to my original point. Costco refuesed to fit the wider tyres to to potential speedo inaccuracies. My Local Fomula 1 depot also said they wouldnt fit unless the manufacturer advised it was OK to do so. Had an email back off Fiat today advising that the 215 width was the only tyre they would recommend. Looks like ill have to stick with the 215s.
I did look at trying to find some second hand 16" alloys with a 118 PCD, but there doesnt seem to be anything out there.

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Howard B said:
Back to my original point. Costco refuesed to fit the wider tyres to to potential speedo inaccuracies. My Local Fomula 1 depot also said they wouldnt fit unless the manufacturer advised it was OK to do so. Had an email back off Fiat today advising that the 215 width was the only tyre they would recommend. Looks like ill have to stick with the 215s.
I did look at trying to find some second hand 16" alloys with a 118 PCD, but there doesnt seem to be anything out there.
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When uprating the rear axle everyone fits the 225 doesn't cause any problems, SV Tech recommend it when uprating.
I did it on my last van.
 
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Lenny HB said:
When uprating the rear axle everyone fits the 225 doesn't cause any problems, SV Tech recommend it when uprating.
I did it on my last van.
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Was that on 15’’ rims?
 
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OK Thanks, I have 6J rims which i think would be just wide enought for 225s

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I went up from 215 to 225 on 15R. It meant I could get Continentals which I wanted because I could run them lower pressures for a better ride, and I could also get 'alpine' rated rubber for a reasonable price.

I've not had any issues... except the tyres are quite a bit heavier as they've got a higher load rating. And combined with the bit of extra width, my MPG is about 5-10% worse. They've got a slightly larger rolling circumference than the 215s, but that doesn't account for all of it.
 
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Guigsy said:
I went up from 215 to 225 on 15R. It meant I could get Continentals which I wanted because I could run them lower pressures for a better ride, and I could also get 'alpine' rated rubber for a reasonable price.

I've not had any issues... except the tyres are quite a bit heavier as they've got a higher load rating. And combined with the bit of extra width, my MPG is about 5-10% worse. They've got a slightly larger rolling circumference than the 215s, but that doesn't account for all of it.
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Was it the standard Van contact Continentals you went for?
 
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Howard B said:
Was it the standard Van contact Continentals you went for?
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Continental VanContact 4Season 225/70R15.

I was travelling around Europe at the end of the ski season and went over the Alps a few times, so I wanted 4 season tyres. I never had any issues with grip even when it was well below freezing and snowing on the passes. They also clear standing water really well.

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They come up at a similar price to the Michellin Agillis Cross climates, its the mud performance I am interested in. Decisions, decisions
 
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