Aprilia RS 660 vs Moto Guzzi V85 TT

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.

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.

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.

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

The main structure holding the bike together.

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

Bike’s weight with fuel and fluids.

A component which support foots of the passenger.

Distance from the ground to the seat.

Distance from the ground to the seat.

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

Indicates the current fuel level in the tank.

Reminds when the next bike servicing or maintenance is needed.

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).

Projector headlights focus on the road, improving visibility, reducing glare for others, and offering a sharper, more efficient beam.

Energy-efficient, bright rear light.

Total energy the battery can store.

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

Notifies you of incoming calls or messages on the bike’s screen.