LifestyleExtreme biker Steffi MarthTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle03/25/2018March 25, 2018Pro mountain biker Steffi Marth is blazing a trail in a largely male domain. She's participated in the Downhill World Cup, won numerous medals in four-cross and travelled the world looking for the ride of a lifetime.https://p.dw.com/p/2ujEWAdvertisement