I don't know Allison McCuskey but I'm jealous of her. She packed the summer of 2015 FULL of mountain biking, camping, yoga, river time and just about everything else that's cool to do around here.
If it's fun and outside, Bozeman folks will find a way to do it. Drifting of cars? Got it. Understand it. Drifting of trikes? Never heard of it before now but quite frankly it looks like a blast.