Herbert Kroemer developed semiconductor heterostructures used in high-speed electronic

Maybe your ride takes you out to dirt roads in the country side and that is where the Kroemer comes into its own. Capable city riding bike that can take on the dirt roads outside of town makes this a very versatile bike. The 24 speed gearing should help in any situation you find yourself in. Like the city bikes it has a handle bar remote to change through the 5 levels of assistance while on the move.