Is the left hand on a motorcycle the clutch or the brake?

[DelJohnny]

For the left-hand control lever on a motorcycle, if it's a standard (sport) motorcycle, then it is the clutch, not the brake. If it's a scooter, the left hand controls the rear brake, while the right hand controls the front brake. Here is some related information: Clutch: The clutch is located within the flywheel housing between the engine and the transmission. The clutch assembly is secured to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the transmission. While driving, the rider can press or release the clutch pedal as needed to temporarily disconnect or gradually engage the engine and transmission, thereby cutting off or transmitting the engine's power to the transmission. Motorcycles equipped with automatic transmissions do not have a clutch lever. When pulling the clutch lever, it should be done decisively to ensure quick and complete disengagement. When releasing the clutch lever, it should be done slowly and gently to ensure smooth engagement. Special Reminder: The correct method of using the clutch should be coordinated with gear shifting and throttle operation. To extend the lifespan of the clutch, avoid resting your fingers on the clutch lever while riding, as any vibration or movement of the vehicle may cause unintentional or subconscious movement of the lever, even slight actions, which can accelerate clutch plate wear. Some riders use only the clutch lever to slow down while riding, which is neither economical nor good for the clutch plates, as it accelerates wear. Brake: Also known as the braking system, it refers to the action of stopping or reducing the speed of a moving vehicle or machinery. The general principle of braking involves fixing a wheel or disc on the high-speed shaft of the machine and installing corresponding brake pads, bands, or discs on the machine base to generate braking torque under external force. Handlebar: Also called the steering handle, it is integrated with the front suspension system via bolts and controls steering, braking, acceleration, clutch disengagement and engagement, lighting, sound, and other operational components. The left hand controls the clutch or rear brake (on scooters), while the right hand controls the front brake and throttle. When operating, both hands should grip the center of the respective handlebars, with relaxed shoulders and elbows and slightly tightened armpits for better control of the brake, clutch levers, and other switches. It serves as the rider's system for balancing the vehicle and changing direction.