Surdyke Motorsports Chesterfield Valley is the newest motorsports and powersports dealer in the metro Saint Louis area serving up the Chesterfield, Saint Charles and Wentzville regions. We offer the best products if your looking for an ATV, UTV, Side by Side, 4-Wheeler, waverunner, Dirt bike or motorcycle. We've been in business over 25 years and offer great brands including Yamaha, Polaris, Honda and more. Don't look anywhere else if you are in the market for a new vehicle.