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Timeline for Why do we need air-filled tires?

Current License: CC BY-SA 4.0

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May 14, 2021 at 0:02 comment added Criggie @PaŭloEbermann Excellent point - any removeable core would make it easier, be it presta or schrader or woods/dunlop valve.
May 13, 2021 at 21:43 comment added Paŭlo Ebermann If you have a tire with Dunlop ventile, you can just screw it off, put water into the tire, then screw it on again, without having to ruin your pump.
May 12, 2021 at 23:17 comment added Criggie @Jahaziel Great suggestion on the expanding foam. The downside is that it may be difficuly to remove, possibly writing off the tyre, rim tape, and maybe even the rim if the cured foam interferes with the bead. At least with water it will simply evaporate.
May 12, 2021 at 20:25 comment added Jahaziel Following the argument of trying solid tires on low budget, there are construction foams that can be used to fill cavities. I've seen videos of it being used to fill car tires. The experiment didn't end well but was fun to watch. Search for "Garage54" on YouTube (youtu.be/arz7JB8t8K4?t=331). For bike tires, however, may be more effective because of the lower weight they have to bear.
May 12, 2021 at 14:40 comment added Jahaziel @Criggie I think that was the experiment I was trying to do, I had heard that about tractors and wanted to try how different would that weight make the bike feel. Not much, as I remember. I think the volume of water would have been 2 or 3 litters. Regarding "hardness" it wasn't much different either. It is true water is uncompressible, but tire elasticity compensated somewhat, so at 40 PSI the ride would not feel harsh at all.
May 11, 2021 at 23:43 comment added Criggie @Jahaziel it used to be common for farm tractors to have water inside their tyres. They didn't go fast enough to make heat/steam and increase pressure, but it did add a lot of low-down weight to help with traction and not over-balancing.
May 11, 2021 at 18:13 comment added FreeMan "I also made a new nut". Because simply going to the store to buy one is too easy.... Just remember kids, they used to make entire car bodies like this!
May 11, 2021 at 14:31 comment added Jahaziel I rolled with a water filled tire for a couple of months. I used an old pump's hose just shoved to a garden spigot. My house had a 40 psi water system, just the right pressure for my 26x2.1 tires. The funniest was the day I got a puncture and the water spouted upwards like a little fountain.
May 11, 2021 at 11:11 comment added htmlcoderexe Oddly enough it did not work the first time and just took me to the start - but it did now \_(0_o)_/
May 11, 2021 at 10:12 history edited Criggie CC BY-SA 4.0
Add a bad idea.
May 11, 2021 at 10:02 comment added Criggie @htmlcoderexe I included the time-offset in the link, 10:25, so it should jump straight there.
May 11, 2021 at 8:31 comment added htmlcoderexe oh my god that's such a nice video! you should really watch all of it as they show really well what is being done, but if you're in a hurry the tire stuff starts around 11ish
May 11, 2021 at 6:31 history answered Criggie CC BY-SA 4.0