Shimano is currently the world's largest cycling component manufacturer and in 2010, they has also decided to join the global e-bike market. Czech manufacturers Author and Rock Machine have chosen Shimano central drive for their e-bikes. Their drive STEPS E6000 is a manufacturer specified as a "Light Off Road" and finds use mainly for trekking e-bikes. STEPS E8000 is already developed for off road riding in 2017. It is the smallest drive for the eMTBs and has a torque of up to 70Nm, but it feels like more. Both these engines are well balanced and very energy efficient.