QJ Motor SRC 250 vs Yamaha R15 V4

Highest power the engine/motor can produce.

The highest twisting force the engine generates, which affects acceleration and pulling power.

Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability.

Method used to prevent engine overheating.

Pollution level compliance of the engine.

Design and working of the two-wheeler's engine.

The type of motor used in bikes.

Different performance settings in a two-wheeler.

Engine cylinder capacity measured in cc.

Bore is the diameter of a bike’s engine cylinder. A larger bore allows more fuel-air mix, increasing power and speed.

Start bike without a physical key.

Highest power a bike/scooter can produce.

A feature that allows gear shifting without clutch.

The maximum distance an electric two-wheeler can travel on a full charge.

Stroke is the piston’s movement inside the engine cylinder. Longer strokes give more torque, shorter strokes give more speed and higher RPM.

Number of valves in each engine cylinder.

A tyre without an inner tube, reducing puncture risks and maintaining air longer.

The system that starts the engine, usually via a key, button, or smart start.

The distance from the center of the front wheel to the center of the rear wheel, affecting stability, handling, and riding comfort.

A tyre with strong sidewalls and better grip, durability, and heat resistance.

(Anti-locking Braking System) Prevents wheel locking during hard braking, improving control and safety.

(Electronic Brakeforce Distribution) This electronic system uses the engine’s resistance to slow down the bike smoothly, reducing excessive brake usage and improving control.

The overall design and shape of the bike (e.g., cruiser, sports, scooter).

The main structure holding the bike together.

The rating which signifies, how well the bike resists water exposure.

Distance between the bike’s lowest part and the ground.

Bike’s weight with fuel and fluids.

Distance from the ground to the seat.

Distance from the ground to the seat.

A port to charge devices or the two-wheeler's battery.

A feature to connect your phone to the two-wheeler's system.

Wireless connection for calls, music, and navigation.

Different settings (e.g., Sport, Eco, Rain) that adjust performance and power delivery.

The method to start the bike (e.g., electric start, kick start, or both).

A system that prevents wheel slip by adjusting power during acceleration on slippery surfaces.

A screen that shows important riding information like speed, fuel, and trip details.

Alerts when engine oil is low, preventing damage and ensuring smooth performance.

A device that connects and disconnects the engine from the wheels for smooth gear shifts.

The entire system that transfers engine power to the wheels (includes clutch and gearbox).

Energy-efficient, bright rear light.

Total energy the battery can store.

Time for quick battery charging.

The design of the seat that affects comfort and seating position.

A feature that lets you play, pause, or change music via the two-wheeler's console or connected device.

A rating which indicates how well the motor is protected against dust and water.

A companion app to monitor bike stats, location, and settings.