Daedalus 72pv 36 lbs Electric Pedelec Road Bicycle, Black Total 36 lbs 27.5-inch wheel road/commuter electric bike 7-speed Shimano derailleur + 5 PAS Options + Multi-functional J-LCD operating panel 36V/8.7AH Li-ion battery (good for 50-60 miles per charge) + Front and rear linear-pull brakes 250W DC brushless motor installed in rear wheel + Micro controller with software that commands battery and motor