To pedal or not to pedal, that is the question. With pedal assist and thumb throttle on your new Centris-Black Buzz Bike, you don't have to choose! The Buzz Centris Class 2 Folding E-bike is built for comfort no matter where you take it and delivers Buzz Bike's biggest boost of power in a smooth ride - up to 20 MPH. Easy to ride, easy to fold, easy to store.