Durable battery: The RV800 is equipped with a 48V 20Ah detachable lithium-ion battery. Large capacity and easy to replace, perfect for long-distance cycling in mountainous terrain. Powerful electric system: The RV800 is equipped with a rear wheel BAFANG 113OW (PEAK) 75OW motor, providing excellent acceleration performance with a top speed of up to 52km/h.