【Long-Range 48V 15Ah Battery】 The M310 is equipped with a 48V 15Ah high-capacity lithium battery, which can reach a range of up to 100 kilometers when using pedal assist and up to 65 kilometers when using only the throttle, making it ideal for long-distance commuting and long-distance riding. 【Energy-Efficient 500W Rear Hub Motor】 The 48V500W rear hub motor provides stable and quiet power to ensure a smooth and energy-efficient ride with a maximum speed of 25 km/h, which complies with most e-bike regulations. 【Torque Sensor Enhances Riding Experience】 The integrated torque sensor accurately measures your pedaling force and adjusts the motor assist accordingly, providing a more natural, more responsive and more energy-efficient riding experience. 【Comfortable 27.5-inch Suspension Setup】 The M310 is equipped with a 27.5-inch aluminum alloy frame, front suspension fork and 27.5-inch × 2.1-inch Kenda tires, ensuring a balanced and comfortable ride on city streets and light off-road trails. 【Reliable Shimano 7-speed gear system】 Shimano 7-speed transmission enables riders to easily adapt to changing terrain or riding style, improving climbing ability and riding efficiency. 【Safe and smooth braking force】 Front and rear mechanical disc brakes provide strong and sensitive braking performance, ensuring riders' safety in all weather and road conditions. [Specifications] 1. Frame: 27.5-inch aluminum alloy 2. Front fork: Kenda suspension front fork 3. Tire: 27.5 inches * 2.1 4. Brake: front and rear disc brakes 5. Transmission: Shimano 7s 6. Battery: 48V15AH 7. Motor: 48V500W rear motor 8. Display: LCD 9. Charger: 42V2A 10. Speed: 25KM/H 11. Throttle travel: 65KM 12. Pedal travel: 100KM 13. Carton size: 147*24.5*84CM 14. Net weight/gross weight: 31.7KGS/36.7KGS