Aprilia RS 457 vs Triumph Speed 400

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.

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

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.

Distance a two-wheeler covers per liter/charge in city.

Highest power a bike/scooter can produce.

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.

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.

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

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

How power is sent to the wheels (e.g., chain, belt, shaft).

The main structure holding the bike together.

Bike’s weight without fuel and fluids.

Bike’s weight with fuel and fluids.

Distance from the ground to the seat.

Wireless connection for calls, music, and navigation.

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

A button to instantly turn off the engine for safety and convenience.

A switch to flash the high beam, signaling other vehicles while overtaking.

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

Indicates the current fuel level in the tank.

The main dashboard displaying speed, fuel, engine stats, and warnings.

Displays the current speed of the bike in km/h or mph.

Warns when the battery charge is low and may need recharging or replacement.

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

Warranty period for the battery.

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

A feature that provides turn-by-turn directions on the two-wheeler display or connected device.