ATO hub motors 24V/ 36V/ 48V/ 60V/ 72V can accommodate different wheel dimensions, making them adaptable to a variety of vehicle configurations. Available sizes can include compact 10 inch and 16 inch wheels as well as larger 20–28 inch wheels commonly associated with bicycles and utility transportation platforms. Wheel diameter affects vehicle geometry, ground clearance, rotational speed, torque requirements, and ride characteristics, so selecting the appropriate hub motor and wheel combination is an important part of vehicle design. Smaller wheel configurations can be useful for scooters, compact mobility equipment, and small electric carts where a reduced overall footprint is desirable. Larger wheels can be incorporated into bicycles, cargo platforms, utility tricycles, and other vehicles designed for longer travel or varied terrain. The combination of different wheel sizes with 250W through 3000W motor options allows manufacturers to develop substantially different products using the same basic wheel-integrated propulsion principle. Gear and gearless versions further increase configuration flexibility. This makes ATO ebike hub motors suitable for both standardized vehicle products and customized transportation projects. Designers can select wheel diameter, motor power, voltage, and drive type according to the physical dimensions and operating requirements of the finished vehicle rather than adapting the entire product around a fixed motor arrangement.