Why Aren't Motorcycles Automatic Transmission?
2 Answers
Because motorcycles have transmission methods that are more suitable for their own needs. Acceleration and Power: Continuously variable transmissions (CVT) provide smoother power output, but under the same displacement, their acceleration and power are inferior to models with gears, which is why most cross-type motorcycles are geared. Higher Fuel Consumption: Traditional transmissions rely on mechanical gear transfer, albeit with the addition of a clutch and several electromagnetic controllers, sensors, ECUs, etc. In contrast, automatic transmissions rely on hydraulic torque converter transmission, which has lower transmission efficiency, higher fuel consumption, and greater weight. Characteristics: Scooters primarily emphasize practicality and comfort, whereas cross-type motorcycles often highlight a sense of control.
Speaking of why motorcycles generally don't come with automatic transmissions, I personally think it's mainly due to technical and design considerations. As an enthusiast who's been riding for over a decade, I must say that automatic transmission systems add significant weight. Motorcycles themselves pursue lightness and agility, and manual shifting keeps the overall structure simpler and more reliable, reducing the burden on the vehicle. Additionally, there's the issue of matching power and mechanical systems—automatic transmissions require extra hydraulic or electronic components, which not only increase costs but are also prone to malfunctions on bumpy roads. Although manual shifting requires practice, it directly links the engine to the wheels, offering faster response times and better balance and control while riding. Some high-performance motorcycle models still retain manual transmissions precisely to maximize performance. Overall, manual transmissions are more durable, especially during long-distance rides or off-road sections, where they won't let you down.
