How green is your bike?

For me mountain biking is one of the most fun things to do. It is a way I can enjoy nature, do sports and meet new people along the way. Everything can occur at the same time. With my interest in sustainability I find it hard get my head around doing this sport in a more sustainable way. I am not a fanatic or short sided when it comes to sustainability and I truly believe that more people should bike instead of drive a car. After all we all want to promote biking. Surprisingly I don’t see much brands in the industry taking real action, for example circular business models or doing active recycling programs of taking in old products to up-cycle. Perhaps, I haven't done enough research yet.