General > General Technical Chat
internal tire pressure sensor on a road bike
abeyer:
--- Quote from: Benta on August 24, 2023, 07:37:37 pm ---Always on hand. :-DD
--- End quote ---
until you need to detach them to leave them installed on the tire. :P
Zero999:
--- 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.
joeqsmith:
I was thinking you could sandwich a strain gauge between the rim and tube. Small coil and some electronics. Power it from a magnet mounted to the chassis. Google search someone actually tried something similar.
https://gigazine.net/gsc_news/en/20130110-btps/
DiTBho:
--- Quote from: joeqsmith on August 24, 2023, 09:00:51 pm ---I was thinking you could sandwich a strain gauge between the rim and tube. Small coil and some electronics. Power it from a magnet mounted to the chassis. Google search someone actually tried something similar.
https://gigazine.net/gsc_news/en/20130110-btps/
--- End quote ---
that's super interesting! thanks :D
thm_w:
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:
https://www.bikeradar.com/news/tubolito-tubo-mtb-p-sens-inner-tube/
https://bikerumor.com/exclusive-rover-psicle-wireless-tire-pressure-monitor-is-accurate-tubeless-battery-free/
Are you using TPU? https://www.bicyclerollingresistance.com/specials/tpu-inner-tubes
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