How fast would a 72V 4000W eBike go?
So, how fast is a 4000w ebike? On private property or closed circuits, a properly tuned 4000w electric bike kit with battery can reach speeds of: 80–90 km/h (50–55 mph) depending on load and terrain. With pedal assist, even higher short-term bursts are possible. A 72v 5000w motor can typically reach 40-45 mph (64-72 km/h) under standard conditions. Optimized setups and favorable terrain can allow speeds up to 50-60 mph (80-96 km/h), with peak cases approaching 80 mph (129 km/h), making it ideal for high-performance e-bikes and street-legal electric motorcycles.Speed capabilities of a 5000w electric bike on average, a 5000w electric bike can reach speeds of up to 40-60 miles per hour (64-96 kilometers per hour) under favorable conditions.Maximum Speed & Use Cases A 3000W e-bike is a powerhouse capable of hitting 70–85 km/h on level ground. These bikes are built for off-road thrill riders who prioritise speed, torque, and endurance over daily commuting.Finally, we have Class 3 ebikes. These are the fastest legal electric bikes, with a maximum speed of 28mph. Class 3 ebikes are still considered bicycles and do not require a driver’s license or license plate.A 72V 5000W electric motor typically powers e-bikes and motorcycles to speeds between 50–80 mph (80–129 km/h). Top speed depends on factors like vehicle weight, gearing, aerodynamics, terrain, and controller efficiency.
Is there a big difference between a 500w and 750w eBike?
The Bottom Line A 500w e-bike is typically adequate for urban commuting, offering a balance of power, range, and affordability. On the other hand, a 750w e-bike excels in hilly terrains and off-road conditions, providing extra power and torque for demanding rides. However, e-bikes are generally more expensive than regular bicycles and come with added weight due to the motor and battery. This can make handling and transporting the bike more challenging, especially if the battery is dead or if the bike is ridden without electric assistance.Replacing an e-bike battery typically battery cost is between $400 and $900, depending on factors such as the type of battery, its capacity, brand, and place of purchase.