RetroFedYou Can't Buy Airless MTB Tires—So I Made Them!
https://www.youtube.com/watch?v=3mrCWFEO_3s
I’d love to print these out on biodegradable filament!
*Alas, I cannot find the stl… :(
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If it doesn’t last as long, wouldn’t it produce a higher volume of plastic pollution. Even if it does break down quicker, it might increase your impact. Also, I think your bike tire wear is truly an insignificant contributor to pollution. Your effort would be much better spent advocating for bike lanes, giving an old bike to a friend so they can drive less, etc. If you ride instead of Uber 1 time, you’re probably offsetting a month of bike tire wear.
Not to mention using a bike instead of a car which is probably at least an order of magnitude reduction in solid pollution, if not more.
Really cool! One thing I sometimes concern my self about is the minimal (comparatively) pollution my bicycle tires make. I would LOVE to print out this design on bio-degradable filament. It very likely wouldn’t last as long, but that’s fine if I’m even further reducing my impact. *Also I almost exclusively ride in urban environments.
Note: most biodegradable filaments are only degradable in industrial-level compost facilities; however, they do break down a lot quicker than conventional plastics in normal conditions.
**Can anyone find the .stl? :O
Biodegradable filaments are usually also rigid. So instead you could just take off your tire and ride on the rim to get similar results.
chickenIt’s a really weird claim that they don’t exist when the first search result for “airless bike” is an amazon link with a large selection of airless mountain bike tires. Is he using a really restrictive definition of mountain bike tires? I looked into this when I moved somewhere I was getting constant tube punctures, but the general consensus seemed to be that they all just suck for various reasons. I ended up going with tire guards plus bike tubes with sealant, this combo seems to work very well, only need to replace the tubes once or twice a year despite multiple thorns getting stuck in the tires every day that would otherwise cause a flat.
If it’s thorns that are doing it, have you tried tubeless? That sealant stuff will seal a pretty sizeable thorn hole pretty much almost instantly. I’ve had rides where you look at it after, and you can see all these little pinholes of sealant poking through, but you haven’t had a noticeable loss of air. I’ve only ever had one flat on tubeless so far, in the decade or so that I’ve been running it, and it was because I was being arrogant and running my tires at basically 10psi. Got it caught between two sharp rocks that basically did a snakebite on the sidewall. Still got it plugged and blown back up on the trail in under 5 minutes (which is my opinion the best part of tubeless). The cons are your tires go flat if it sits for a period of time, and you have to top them up fairly regularly, but it’s worth it IMO.
Haven’t tried tubeless but definitely can attest that sealant works very well with tubes also
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Oooh, if that algae-derived TPE would just hit the market already… 😍
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.
his point made sense. tubeless is “good enough” that there isn’t a demand nor market for airless 🤷♂️
I generally like traction.
Awesome project, but I’m really bummed out he’s openly supporting that piece of shit company
first thought without opening the link:
what if you drive through dirt? will it all clog up and feel extra shit?
That sounds very bad for many reasons