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Jun 30, 2020 at 8:35 comment added Dmitry Grigoryev Steel belts in car tires are not for puncture protection. You simply need reinforcement in a tire which must withstand a couple of tons, and steel happens to be suitable and cheap. Incidentally, it also protects against punctures somewhat.
Jun 29, 2020 at 12:06 comment added Criggie @MarkSegal We're diverging from the purpose of comments. Feel free to use Bicycles Chat
Jun 29, 2020 at 12:05 comment added Mark Segal @Criggie that's not necessarily true, as the ratio between the mass of the vehicle and the tire size might not be so different between a bicycle and a car. or not.
Jun 29, 2020 at 12:04 comment added Criggie @MarkSegal right, but that's not the point. A car has more power total, to overcome the drag of bigger thicker tyres. An identical car would roll better on more efficient tyres, at the risk of higher puncture risk.
Jun 29, 2020 at 11:57 comment added cmaster - reinstate monica @MarkSegal Which is still insanely overpowered, imho...
Jun 29, 2020 at 11:47 comment added Mark Segal a 1.5 ton car doesn't use all the 100 horsepower when coasting. it may use 10-30 horsepower to maintain a 100 km/h speed. @Criggie
Jun 28, 2020 at 21:02 comment added Criggie To expand this, a 1.5 ton car with 100 horsepower is ~75,000 watts or 50 watts per kilo. A 100 kg cycle+rider doing 250 watts is 2.5 watts per kilo, so approximately 1/20th that of the car. The motor vehicle has much more power to burn (ie waste) on overcoming rolling resistance from hefty tyres.
Jun 28, 2020 at 18:08 review Low quality posts
Jun 28, 2020 at 19:58
Jun 28, 2020 at 17:49 history answered Armand CC BY-SA 4.0