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Tubeless tire valves are getting weird. Here are the pros and cons to each design.
(www.singletracks.com)
this post was submitted on 18 Jul 2025
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micromobility - Bikes, scooters, boards: Whatever floats your goat, this is micromobility
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Had to google tubeless tires to even understand the headline. Tubeless tire whats? I thought a tubless tire was some kind of solid or foam rubber that needed no inflation, but apparentlly it still does, it just doesn't have a separate innertube. Interesting.
What you're describing is a bib mousse, which does also exist.
Everyone is familiar with tubeless tires even if they don't know it, because modern car tires are all tubeless. We stopped using inner tubes in car tires in the 1950s. Tubes hung on in bikes, motorcycles, and some truck tires (and wagons and lawn mowers and tractors and lots of other nonroadworthy things) for various reasons.
D'oh of course, I've never had car tires with tubes, but of course they need air. Should have thought of that.
Tubeless are nice. Tubeless tire fluid is basically just like blood. When the tire is punctured (assuming it's not a catastrophic puncture) it will automatically reseal and coagulate around the hole. It's typically used more for off-road/downhill mountain biking. Some city bikes also use it, but dealing with a flat is much easier in the city.
Tubeless tires are popular because you can run them at lower pressures without issues like pinch flats, so they're grippier. They also have lower rolling resistance so they ride faster.