Motocross riders in action. Stock Photos. Photographer Marcin Roszkowski has just published a new set of Motocross riders in action. stock images.Motocross is a type of extreme sport, physically demanding and held in all-weather conditions. Races are held on off-road circuit with natural obstacles. Action images, taken on sport events in Astbury and Warmingham tracks near Manchester and Stoke-on-trent, England as part of Cheshire North West Championship. Gallery contains pictures of motocross riders in the various categories like: Autos, 65 cc, Small Wheel, Big Wheel, Schoolboy, Adult and Veterans. Check out Marcin Roszkowski’s portfolio here.