** Caution: EXTERNAL Sender ** In the 80s Michelin made 2 diff ‘metric tyres’ MX range but due to costs most people swapped wheels to inch diameter so they could fit all makes of tyres. The montego was one of the cars that did this
On 22 Jun 2025, at 6:04 pm, [email protected]<mailto:[email protected]> vlietstra--- via USMA <[email protected]<mailto:[email protected]>> wrote: ** Caution: EXTERNAL Sender ** Hi Mike, An alternative explanation is that almost all tyre manufacturers supply tyres for almost all car manufacturers making industry standards necessary. Shortly after WWII, the car manufacturing industry was dominated by the UK and US. Wheel dimensions were In inches. In the 1970's the industry went metric. Nuts and bolts were easy - metric nuts and bolts already existed - the various imperial spec nuts and bolts were phased out. Tyres were a different matter, the industry could not afford to continue manufacturing imperial sized tyres for two decades for older models while supplying metric sized tyres for newer models. However there is some flexibility in rim width and a particular tyre could fit both a 6 inch rim with an inner tube and a 150 mm rim which was tubeless. Hence the transition to metric rims went hand in hand with the transition from using inner tubes to using tubeless tyres. Sent via BT Email App From: Metricmike via USMA Sent: Jun 22, 2025 at 6:32 AM To: [email protected]<mailto:[email protected]> Subject: [USMA 2135] Re: Screen size computer monitors. ** Caution: EXTERNAL Sender ** I think there has been a compromise between the EU and the US on standardizing worldwide Wheel Rim diameter in inches to fit tyres that have a height and width in millimetres. But you notice with screens, the actual size is millimetres. Mike On 22/06/2025 01:46, Ezra Steinberg via USMA wrote: ** Caution: EXTERNAL Sender ** Tire and wheel sizes, too? On Sat, Jun 21, 2025 at 3:46 PM Stephen Humphreys via USMA <[email protected]<mailto:[email protected]>> wrote: ** Caution: EXTERNAL Sender ** The use of inches for screen and projector size is universal. Sent from my iPhone > On 21 Jun 2025, at 5:13 pm, csm--- via USMA > <[email protected]<mailto:[email protected]>> wrote: > > ** Caution: EXTERNAL Sender ** > > And Apple calls itself a technology company! I recently had to replace an > laptop. The one from HP that I bought was advertized at 15.9 inches. > Obviously the screen was 40 cm. Why didn't they just say so! As a > purist, it annoys me when units are mixed, some metric, some legacy. > > ============ >> On Sat, 21 Jun 2025, Metricmike via USMA wrote: >> >> Hello All, >> >> I notice frustratingly that Apple the electronics company, has screen >> sizes in inches only (probably rounded to the nearest inch) worldwide on >> their websites and in the stores, despite the fact that few people >> outside North America and the UK use inches. >> >> I was in Australia earlier this year getting a iPad for my brother and >> all the screen sizes were in inches only, all over the store. I asked >> why? It's an Apple policy apparently. Might as well have been in cubits >> for all it meant to everyone under 60 in Australia. The person in the >> store had no idea what the size was in millimetres nor how to convert it. >> >> Submit your thoughts on this to >> Apple.com/feedback<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fapple.com%2Ffeedback&data=05%7C02%7Cusma%40lists.colostate.edu%7Cc483415c46d44389670f08ddb1d3d1eb%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C638862245518797096%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=onObCKkRABIWcfPjDr2tRnHzbkv0CPU8JxrTzfweFYw%3D&reserved=0>. >> >> Mike Payne > _______________________________________________ > USMA mailing list > [email protected]<mailto:[email protected]> > https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma _______________________________________________ USMA mailing list [email protected]<mailto:[email protected]> https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma _______________________________________________ USMA mailing list [email protected]<mailto:[email protected]> https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma ________________________________ _______________________________________________ USMA mailing list [email protected]<mailto:[email protected]> https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma _______________________________________________ USMA mailing list [email protected]<mailto:[email protected]> https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma
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