Yamaha YZF-R7 vs Yezdi Adventure

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.

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

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

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).