Specification Materials: Aluminum, Iron, Copper, Magnet Steel Process: Baking Paint Color: Silver, Black Style: Modern Assembly Required: Yes Installation Position: Rear Applicable Bicycle Size: 20 Inches Motor Type: Brushless Toothless Motor Handbrake Type: Disc Brake/V-Type Brake Voltage: 36V Power: 250W Gear Adjustment: 3 Gears No-load Speed: 28 km/17.4 mile/h Load Speed: 23 km/ 14.29 mile/h Controller: 36V 15A Assist: 5 Magnetic Point Assist Sensor Brake Lever: Power Cut-off Brake Lever Display: LED Display Package Included 1* Motor Rear Wheel 1* Controller 1* LED Display 1* Controller Bag Other Accessories for Assembly.
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