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| internal tire pressure sensor on a road bike |
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| DiTBho:
--- Quote from: thm_w on August 24, 2023, 09:16:46 pm ---For live monitoring you are probably best off with that sram unit. There are some non-live sensors as well, similar to the one joeqsmith linked above using NFC: p-sens-inner-tube/ wireless-tire-pressure-monitor Are you using TPU? tpu-inner-tubes --- End quote --- thanks for this info! my 28" wheels are not tubeless as rims are not compatible with this technology, instead they use old school inner tubes (so, they are not TPU), but able to go up to 8 BAR of pressure! TPU inner tubes look *very* interesting as advertised as made for speed and designed to offer the lowest rolling resistance possible. The final bicycle will reach ~35Km/h on average on the road, with peaks of 50km/h!!! |
| joeqsmith:
That TPU link was very interesting. Not that they make lighter tubes but that there is a concern over a few grams here and there. :-DD 35Km/h is moving. I remember when I started riding above 10MPH. We lived in the hills. I would ride about 20-30 miles after work. Once we moved, it was all flat. My average speeds were 18MPH. I missed the hills, got bored and packed up the bike. Now I'm an old fat man with an old heavy bike. |
| tszaboo:
--- Quote from: Zero999 on August 24, 2023, 08:09:29 pm --- --- Quote from: DiTBho on August 24, 2023, 12:07:15 pm --- --- Quote from: mikeselectricstuff on August 24, 2023, 10:10:53 am ---Have you looked at automotive TPMS modules ? --- End quote --- thanks, good keyword to Google for :D --- End quote --- Road bike tyres need to several times the pressure as car tyres. --- End quote --- I heard 4 BAR, that's what I use. A cyclist friend of mine said, you pump the tire until it blows up in your face and then you use the tire with just a little bit less pressure. My car manual said 2.5 BAR. |
| DiTBho:
--- Quote from: joeqsmith on August 25, 2023, 01:18:28 pm ---a few grams here and there --- End quote --- how to save 200g from the inner tube with a lighter component, plus 400g off by removing the rear brake, so you can add +1200g on the wheel for the gearhub. makes sense ;D ;D |
| joeqsmith:
--- Quote from: DiTBho on August 25, 2023, 02:53:13 pm --- --- Quote from: joeqsmith on August 25, 2023, 01:18:28 pm ---a few grams here and there --- End quote --- how to save 200g from the inner tube with a lighter component, plus 400g off by removing the rear brake, so you can add +1200g on the wheel for the gearhub. makes sense ;D ;D --- End quote --- I could eat rice for a week :-DD That or just get back on the old bike. My bikes added weight = better workout = more weight loss. :-DD I was running about 120PSI (8.3bar) in my road bicycle. |
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