The Zenoah G2D-58 is the original 2 stroke power plant of the California Goped. The Zenoah G2D-58 is the predecessor to the Zenoah G23LH slant plug engine. What's special about this model is a straight plug engine design and higher top end power than the successor, its feel is like the rc engines we have today but a little more finicky. It was the power-plant for many Goped scooters, including the Goped Sport, Goped Liquimatic, Goped Go Quad