Tony Posted May 13, 2008 Report Share Posted May 13, 2008 Working in the industry for so many years i didn't realise how complicated the tyre size must be to the public, and thinking about it i do wonder how this has evolved. The current industry description for the tyre size is...... Example 205/65-16 which equates to "metric/percentage-imperial" or..... I did that twice because the first image gets shrunk for some reason Some years ago Michelin and Dunlop produced an all metric tyres like "200mm/60mm-390mm" To me this reads better to the laymen don't you think? Quote Link to comment Share on other sites More sharing options...
Noel Posted May 13, 2008 Report Share Posted May 13, 2008 Ya i wondered that in the begining... I would prefer all metric too, especially the % ratio bit... I never got where they were coming from with that... Quote Link to comment Share on other sites More sharing options...
luisfelipe Posted May 23, 2008 Report Share Posted May 23, 2008 I can not contribute to answering the questions since I, also, do not understand how come they have so many variations, how come there is so little information as to how each dimmension affects safety, handling, economy, etc. Quote Link to comment Share on other sites More sharing options...
Tony Posted May 23, 2008 Author Report Share Posted May 23, 2008 I can not contribute to answering the questions since I, also, do not understand how come they have so many variations, how come there is so little information as to how each dimmension affects safety, handling, economy, etc. Good question.... Loads of info regarding fitment but as you say little information relating to consequence's. Quote Link to comment Share on other sites More sharing options...
jon Posted May 23, 2008 Report Share Posted May 23, 2008 All metric wouldn't work as wheels sizes are ALWAYS in inches. The percentage aspect ratio works in my head, but I guess it's just what your used to. At least it makes the manufactures work to a standard and not have Bridgestone making 245mm/60mm and Toyo 245mm/56mm etc. An outer circumference would be useful too so you could judge rolling radius when changing widths. Quote Link to comment Share on other sites More sharing options...
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