Germans did it first, a century ago...

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.

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

He should put them on that absolutely trash ebike too he pulled apart

It'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.

I really would like to know how many kilometers those tires will last.