Built-in Controller Electric Bicycle Conversion Kit 48V 1500W 20 26 29 700C. 1 Pair Power cut-off Brake lever.1 8 Magnet Pedal Assistant Sensor. Rated Current: 22A Max Current: 45A for 1000w Rated Current: 26A Max Current: 50A for 1500w 22A 2. Full Speed: 48V 1000W about 45-55km/h, 48V 1500W about 50-60km/h, (different wheel size, road&weather condition and rider's weight will have different speed) 3. Torque:30-40NM for 1000W , 35-45NM for 1500W 7. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components". The seller is "cscbike" and is located in this country: CN. This item can be shipped worldwide.