A teenager driving a ground loop on his mountain bike, Downhill Park, Wagrain, Austria

trees skill people cycling caucasian appearance casual clothing pants nature bicycle self control travel park trousers biking mountain bike teenager european ethnicity outdoors action tree sweater trousers one teenage boy only one person austria speed challenge body control person confidence sports driving sports helmet europe sports stunt ability mountainbiking trick forest mountainbike courage driving day full length boy front view 16 17 years sports clothing christoph priesner downhill park ground loop timber wall wagrain