orologio en CB01 OFFICIAL. Amateur dirt-bikers Rien and Hans–and their mechanic Eef–each fall in love with Fientje, a young woman who, with her brother Jaap, works a concession stand at the races. Everyone seeks a better life: Fientje wants out of the business and away from Jaap; and Rien and Hans aim to make their marks as pro racers, like their hero, Gerrit Witkamp.