671: I'm 42, Should I Know Better? | GCN Show Ep. 671

This week on the GCN Show, Si explains the story behind his cuts and bruises after a nasty cyclocross crash! We investigate a new report that claims cycling is the most dangerous sport in America, ahead of basketball and football. Plus, Mathieu van der Poel could be taking on an Ironman, we check out the world's first aluminum velodrome.