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Car Forum / Volvo Cars / June 2005Tyre types
Anyone know the answer to this. I've damaged the sidewall of one of the tyre on my 850. Going to have to replace it. All the tyres on the car are rotational, ie. have to be the right way round on the car turning in the right direction. Question is, can I just get a njormal tyre to replace with, or does it have to be rotational as well? Thanks - Roy >Anyone know the answer to this. I've damaged the sidewall of one of the tyre >on my 850. Going to have to replace it. All the tyres on the car are >rotational, ie. have to be the right way round on the car turning in the >right direction. Question is, can I just get a njormal tyre to replace with, >or does it have to be rotational as well? >Thanks - Roy It will have the be the same type and size, but not necessarily the same brand. Matching the brand would be best, though. Using a mismatched tire will interfere with the cars' handling. Gary  SignatureGary Heston gheston@hiwaay.net Windows is like SUVs; a bad idea, poorly implemented, unsafe, with a lot of inept users, but a fact of life we have to put up with. In an earlier contribution to this discussion, > Anyone know the answer to this. I've damaged the sidewall of one of > the tyre on my 850. Going to have to replace it. All the tyres on the > car are rotational, ie. have to be the right way round on the car > turning in the right direction. Question is, can I just get a njormal > tyre to replace with, or does it have to be rotational as well? > Thanks - Roy I've never really understood the purpose of tyres which can only rotate one way - what happens when you go backwards?! I guess that there's a slight difference in their wet grip ability in the two directions, but I doubt whether the earth would stop rotating if you used one the wrong way round. As far as mixing them with tyres which can rotate either way is concerned, I can't see any problem. I have had the occasional 'rotational' tyre on my cars in the past when I've needed a tyre in a hurry and that was all that was available - and they always mixed ok with no noticable effect. SignatureCheers, Bonnet Lock ______ Please reply to newsgroup. Reply address is invalid. > I've never really understood the purpose of tyres which can only rotate > one [quoted text clipped - 3 lines] > two directions, but I doubt whether the earth would stop rotating if you > used one the wrong way round. There ya go! The earth might start rotating backward! ;-) Mike There is a huge difference in aquaplaning resistance when using directional tyres on the wrong side as opposed to the right side. If you look at the tread pattern you will notice it is a chevron. Whne the tyre rotates the head of the chevron (in the center of the tyre)encounters the water first . As the tyre continues to rotate the water is forced outwards to the edge of the tyre for dispersal. If you run the tyre backwards the water is forced toards the centre of the tyre - BAD IDEA!!! Going in reverse is never a problem as the risk of aquaplaning in reverse is pretty low..... Manufacturers put those little directional arrows there for a reason.... best follow it! Incidentally, in some countries using the tyres against the directional arrow is illegal and it could invalidate your insurance... > In an earlier contribution to this discussion, > [quoted text clipped - 18 lines] > cars in the past when I've needed a tyre in a hurry and that was all that > was available - and they always mixed ok with no noticable effect. Hi Everyone, many thanks. Went to a local, good tyre supply place and got the guy to reverse the spare tyre so I can use it to replace the damaged one. Replaced the damaged tyre with a non directional, which is apparently perfectly legal and in order and am using it as a spare. Makes sense really as now I can replace any punctured tyre with the spare and not have to worry about rotational direction. - Roy > There is a huge difference in aquaplaning resistance when using directional > tyres on the wrong side as opposed to the right side. If you look at the [quoted text clipped - 40 lines] > > ______ > > Please reply to newsgroup. Reply address is invalid. To be safest replace it with the exact same tire that you damaged - this will ensure the most predictable handling in an emergency... Are the other tires in good condition? You might want to consider replaceing a pair of tires, or all four if they are all a little low on tread. > Anyone know the answer to this. I've damaged the sidewall of one of the > tyre [quoted text clipped - 4 lines] > or does it have to be rotational as well? > Thanks - Roy if the tires have much wear on em at all then it will make no difference what kind of tire you put on if its the same size directional tires only make for better displacement of rain unless you slam on the brakes at 60+ there is no way you would notice a difference even if you have four different tires on the car as long as they are the same height and similar width BAD ADVICE YOU NEED ALL THE SAME PATTERN AND PROPER AIR PRESSURE > if the tires have much wear on em at all then it will make no difference > what kind of tire you put on if its the same size directional [quoted text clipped - 4 lines] > different tires on the car as long as they are the same height and similar > width john you sound like a crooked salesman - oftentimes uninformed and always looking to make a buck Hey I said the same tyres tires the same width right pressure ,not the other nonsense which could get you killed . > john you sound like a crooked salesman - oftentimes uninformed and always > looking to make a buck Bob I was a professional driver for many years cheap tires are expensive as are mismatched under or over pressured tires .To drive on mixed tires is a stupid dangerous act in fact I would use the words criminal act .Back in the old days when the garage used to do your tires \tyres I found my sports car was all over the place a quick check of the pressures was scary stuff ,12 28 32 18 as I recall since then I do my own pressures .I am well informed as once I had a council worker with mixed tires lose control and hit my car, when I wasn't even on the road . > john you sound like a crooked salesman - oftentimes uninformed and always > looking to make a buck > Anyone know the answer to this. I've damaged the sidewall of one of the tyre > on my 850. Going to have to replace it. All the tyres on the car are > rotational, ie. have to be the right way round on the car turning in the > right direction. Question is, can I just get a njormal tyre to replace with, > or does it have to be rotational as well? > Thanks - Roy >Anyone know the answer to this. I've damaged the sidewall of one of the tyre >on my 850. Going to have to replace it. All the tyres on the car are >rotational, ie. have to be the right way round on the car turning in the >right direction. Question is, can I just get a njormal tyre to replace with, >or does it have to be rotational as well? Replace the tyres of the left AND right side! Pieter |
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