Control Module for the HeyBike Mars Electric Bicycle Emmo Xtron Our set of two rear Style:Pink Hawaiian Our set of two rear fenders for 150cc 250cc go karts features a pair of black plastic panels to help keep the mud and the muck from being thrown by the rear tires up onto the 'kart this seat post has a built in shock to generally improve rider comfort and to help cushion any bumps you may encounter on your biking adventures This controller comes with all of the wires and connector needed to successfully replace your original HeyBike controller The control module for the HeyBike Mars electric bicycle is also commonly referred to as the motor controller or the "brain" of the e bike because it controls all of the electronics of your HeyBike