Kids who like to compete will love this LEGO? City The Knockdown Stunt Challenge (60341) toy playset with glow-in-the-dark elements. Kids launch the flywheel-powered motorbike to strike a column and win a prize. And with 2 popular LEGO City TV characters, the scene is set for fun-packed role play. Combine this set with others from the LEGO City Stuntz range for more stunt action.