Stride® Mega Mystery™. 14 pieces sugarfree gum. As the ridiculously long lasting gum, our idea was to create the longest lasting mystery - yes, a Mega Mystery™ it's our new flavor that could keep you guessing what's in it forever. Have an idea of your own Tell us about it at stridegum.com. 30% fewer calories than sugared gum. Calorie content of this size piece has been reduced from 5 to 3 1/2 calories. Stride and all related trademarks and indicia are owned by Cadbury Adams USA LLC. Questions Call 1-800-524-2854. stridegum.com. ©2009 Cadbury Adams USA LLC.