Motor-wheel kit Golden Motor Smart Pie-4, 26 "(rear wheel) Kit for upgrading a regular bicycle to an electric bike. Maximum speed 40 km / h (26", 48V), without pedaling. The range depends on the capacity of the battery, averaging 20-40 km, without pedals. If you pedal a little, the range will increase by 1.5-2 times. The Smart Pie-4 wheel motor is one of the lightest direct drive motors in its class. You can program it from 250W to 450W. What makes Motor Smart Pie-4 good, unlike others, is that it is very light - it is one of the lightest Direct Drive motors. Aesthetic and laconic design. The kit includes: - Smart Pie-4 wheel motor (brushless and gearless motor, with an internal sine controller with upgraded MOS transistors); - Brake levers; - Throttle stick (used to adjust the speed of movement, shows the battery sensor, LED warning lights on). You can choose from 2 types: motorcycle type and thumb, - Cruise control button (used to activate the autopilot function (constant speed). - Cables and connectors (used to connect all accessories with a motor). Wheel diameter: 26 "(rear). Rim: double aluminum, inner width - 20 mm, outer - 25 mm. You can see suitable cameras and tires here. Seat: 130 mm. Controller: internal, programmable power 250/350/450 W. Main advantages: 1. Very light - the motor weight is only 4.5 kg The total weight of the set is 8.0 kg 2. An easily replaceable external controller with upgraded MOS transistors; 3. Dual sensor control mode and without a sensor; 4. Programmable voltage 24/36 / 48V; 5. Programmable power 250/350/450 W; 6. Regenerative braking; 7. Cruise control (constant speed) 8. Reverse is possible (Forward / Reverse) 9. Durable (up to 100,000 km).