Motorcycle racing, probably in Isle of Man.
Tourist Trophy Race - Isle of Man?
Motorcycle race for youth (teenage boys). Riders dressed identically, ride or push their motorcycles slowly along road. Large group of riders sitting on their bikes at start of race.
Rider speeding round a curve during road race, spectators sit on wall or stand behind fence. Motorcycles coming up a hill and turning past an official who stands pointing to right, advertising banners for Dunlop Tyres etc. on hill beside road.
Pan right with bikes as they head up curving road. Shots of more bikes on this same stretch of road. Motorcycles coming up another hill. Shot looking down at bike driving on road that curves between 2 rock walls. Rider coming around rather sharp curve. Riders making another turn, one rider slips off bike but quickly gets back on.