Introducing the new and improved Estarli e28.X. Its innovative design includes an integrated 2 speed automatic gearbox with belt drive for seamless gear changing and maximum ease of riding. Alongside this, is a high technology torque sensor for perfect power output and a super smooth riding experience! The e28.X's lightweight design at only 18.9kg (16.9kg without the removable battery) means it rides like a normal bike, even without assistance and it is also easier to lift or manouver.