Words & Photography Pete Scullion As I stand in a frozen Innerleithen car park trying to wrap my arms tighter around my torso in a vain effort to warm myself up, I’m slapped by the irony of having Ruaridh Cunningham battle through Edinburgh rush hour traffic and an icy mountain road in early December to discuss the less glamorous aspects of being a professional mountain biker. At least the sun is out, right? From the…