In general, e-bikes are relatively heavy due to factors such as motors, batteries, and stronger frames. But the weight of an e-bike varies with different motors and batteries.
Motor and battery weight
Electric motors and battery packs add significantly to the weight of an electric bike. Hub motors typically add 4-8 lbs. Mid-drive motors add about 5-10 lbs. Battery packs range from 6 to 15 pounds, depending on capacity. Combined, electric components can add 15-25 pounds or more to a bike.
Stronger frames and parts
E-bikes require stronger reinforced frames and components to withstand the extra weight and torque. Stronger forks, rims, spokes, tires, brakes, gears, and other components add weight compared to a conventional bike. The overall weight of the frame and components may increase by 5-15 pounds.
The gross weight of e-bikes
Overall, the typical e-bike weighs between 45-75 pounds, with high-end performance models approaching 90 pounds. In comparison, the average weight of a conventional bicycle is only 20-30 pounds. Electrical components and reinforced construction make the average e-bike weigh about 25-50 pounds.
Conclusion
Although current e-bikes are not lightweight, technological advances in the e-bike industry, lightweight motors, batteries, and frame improvements are expected to make e-bikes lighter while maintaining the same power and performance.