Afaik you could buy airless. It has been a commercial product for decades.
this post was submitted on 01 Aug 2026
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Awesome project, but I’m really bummed out he’s openly supporting that piece of shit company
Oh, was it sponsored by Bambu? Sponsor block might've caught me there. I was sorta dissapointed when I learned he'd moved from Prusa, as that is where he started.
Yeah, but he concluded that they kinda suck. At least version one. Fun project, but pointless?
I bet if you asked, Seth would make the stl available.
He'd like em a lot better, if he took the tread off and stuffed them inside a tire. Still wonder to this day how mountain biking hasn't picked up on Mousses. They came pretty close with those cush cores, but they still weren't really meant to be run flat. I run mousses in my dirtbike, and they generally kick ass. A big miserable to install the first couple times until you get the hang of it, but awesome.
You kinda run into the same issue as runflat inserts on cars. They make the wheel a lot heavier, bad for something human powered. Rotational mass costs more power to move than mass on the frame.
Even without a tire over them, they weigh more than the heaviest tire on the market. So, yeah. Exactly.
Tyre insert fad has been and gone over the last few years. There are a shitload of options, not just cushcore.
Decent tyres are better than an inadequate tyre with something stuffed inside.
Dirt bikes are so much faster, heavier and powerful that comparisons with mountain bikes are mostly unhelpful.
Oh, like rc crawlers inserts? Makes sense.
Oooh, if that algae-derived TPE would just hit the market already... 😍
his point made sense. tubeless is "good enough" that there isn't a demand nor market for airless 🤷♂️
I generally like traction.
first thought without opening the link:
what if you drive through dirt? will it all clog up and feel extra shit?
The sides are open, why would it clog up?
Because mud will do what mud does and clog any opening smaller than a few inches wide?
It'll get squeezed and/or flung out the next revolution of the wheel though
I can't even clear up regular spokes fully by going 40kmh down a road because of the clay type mud we get.
That’s relying on air alone, the mud on your spokes doesn’t receive much if any additional shear forces.
I meant while biking down a hill.. If riding squeezed out all the mud then that means the runflat tire is... Flat...
That sounds very bad for many reasons