Flat bike tires are annoying and cause a lot of waste.
So what would you say, if there were tires that are unflatable, because they don’t have to be filled with air?!
→ more info (kickstarter.com – November 2016)
Here you can now buy these unflatable tires:
For all of you who want to upcycle your already flat tires:
→ here are some ideas
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