(Reuters) - Britain's BMX racing Olympic champion Bethany Shriever won the world championship title on Sunday with a superb performance in Papendal in the Netherlands, after a three-rider crash ended Alise Willoughby's hopes of retaining her crown.

Shriever, who once worked as a teaching assistant to fund her riding, sprang a major surprise when she dethroned Colombia's BMX queen Mariana Pajon to win gold in a thrilling race around one lap at the Tokyo Games last month.