This fits your. Make sure this fits by entering your model number. 【INTELLIGENT POWER SYSTEM】 From the automotive hybrid technology ,to achieve the perfect bination of power and physical fitness.Power fast drive, cut off is also very sensitve.Through the torque sensor as the core of the triple sensor to perceive your power and the state of the vehicle .At the same time through the bionics algorthm,high-speed calculation of your riding power and the required power to mobilize the motor in time to drive power drive. 【Powerful 500W motor】Fully enclosed waterproof and dustproof IP5 .Maximum speed up to25-28mph. Equip with the 5 power assist level 1-5, supply the Stronger and Stronger power and respond at any time,to meet your every acceleration. Professional 8-speed shifter,Full-aluminum prowheelcrankset and chain, making the overall transmission system smooth and durable. 【INTELLIGENT BATTERY CONTROL SYSTEM】Electric Bicycleprovides a 48V 13AH large capacity battery offers strong climbing and acceleration capabilities, assisted travel of up to 50 miles per charge. 8 charging protectionprovide rational management of lithium batteries to protect the battery safety and long service life. Anti-theft lock and Waterproof mode ,no worry for being stolen. 【Hydraulic Disc Brake】Taiwan Zoom Hydraulic Disc Brake, Dual-Piston Calipers, four-Finger Adjustable Levers with Motor Inhibitors.Brakes are more responsive and safer to ride. 【Complete after-sales service】 85% pre-assembled. It's not difficult to finish assembly by yourself---Watch video instruction. Any problem you can always find our after sales members. With up to a 1-year warranty for the frame and 6 -months for electric motor, battery, and the charger. You don’t need to worry about using it. We have confidence in our electric bike, and believe you would like it.