Researchers at the University of Bayreuth have, for the first time, provided concrete figures on the abrasion of mountain bike tyres in off-road conditions. Their findings contribute to a better understanding of the global microplastic cycle. They report on their research in the journal „Science of The Total Environment“.
So if you take someone in the United States, driving an average of 25,000 km per year, they are generating something like 2,750 g of microplastics. If that same person mountain bikes 25 km per week for a year (1,300 km) they are generating something like 46 g of microplastics. I’m all for making mountain biking more environmentally friendly, but it looks like a rounding error on our microplastic emissions when looking at other sources. Combined with giving people more reason to protect nature, I’d guess it’s a net positive. Here in the US, wet need to fix our land use and transportation, as car dependency is not compatible with a livable planet.