Potrebbe anche interessarti
http://www.imba-europe.org/events/2nd-trail-building-school-imba-italia
https://www.pinkbike.com/news/riva-del-garda-will-host-the-2018-imba-italia-trail-building-school.html
http://mountainbikepassion.it/in-arrivo-il-terzo-corso-di-trail-building-di-imba-italia