Bike Bug® bicycle engines are meticulously engineered to provide versatility and reliability. We offer America’s Favorite Bicycle Engine, the Improved Bike Bug®, in both front mount & rear mount models. We offer sales, literature, and parts for Classic Bike Bugs® also. We have been collecting information, making parts, and helping folks keep these little engines running for 25+ years now. We are so pleased to offer you the Improved Bike Bug® with that wonderful 40+ year history of being America’s Favorite Bicycle Engine.