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Space saver spare tyre - Ride/Handling/Suspension/Brakes/Wheels/Tyres - The Lotus Forums Jump to content

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Hello,

Has anyone any experience / got one for an Excel? If so which one? Ones for the Ford Fiesta seem to be easy and cheap to get.

One thing that I have found in mt research is that the diameter of these space saver spares is nearly always smaller than the diameter of a full tyre, which in my mind says that on a flat surface the spare is off the ground - or does the suspension on that side compensate for this?

Thanks

 

Brian

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On many modern cars, the suspension is flexible enough to cope with a few cms difference in rolling diameter, but I think you're right to be think differently for the Excel. These are cars that are quite stiff, so if one tyre is of a smaller diameter then it may make the car slope noticeably, but you'd presumably be driving very sedately when on a space-saver tyre.

Our tyre sizes are quite small by modern standards,  so (if a Fiesta space saver is 125 80 15) then it's only 2.6% different to a standard Excel tyre (215 15 15), or 1.7% to a common replacement (205 50 15 as the 215s are hard to acquire at reasonable cost). At that sort of difference I'd personally not worry.

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Andy,

Many thanks for your reply and for confirming my thoughts. Yes, I would drive sedately and straight to a tyre shop, so no distance at all, hopefully. I hope never to have to use it as I will also be carrying an electric pump / foam puncture repair kit.

Brian

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Great idea what's the weight saving going to be? Leaving out the can of foam and electric pump?

I think if you punctured on the front that 2% (maybe throw in more deformation on the car because of narrower profile?) difference could be a problem.

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I'm not bothered by the weight saving, so I wouldn't know. I'm not looking at getting one so save weight but to find a wheel that will fit into the boot - the full size wheel won't. Hoping a thinner wheel will.

I will also be having the can of foam, the spare wheel being used only if the foam doesn't work.

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I was wondering why a full size one wouldn't fit but I'm guessing it's because the Elite used smaller wheels than the Excel, and you're using Excel-size tyres etc.

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