Chain final-drive systems are by far the most common. In this system, a sprocket installed to the output shaft (i.e., the shaft in the transmitting) is linked to a sprocket mounted on the trunk wheel of the motorcycle by a steel chain. When the transmitting turns the smaller front side sprocket, power is usually transmitted along the chain to the bigger rear sprocket, which in turn turns the rear wheel. This kind of transmission program in automobile should be lubricated and adjusted, and the chain stretches and the sprockets use, requiring periodic replacements.

Belt drives
Belt drives are an alternative to chain drives. Early motorcycles often used leather belts, which could be tensioned to provide traction using a spring-loaded pulley and hand lever. Leather belts often slipped, specifically in wet weather, so they were abandoned for various other materials and styles. By the 1980s, advancements in components made belt final-drive transmission system in automobile viable once again. Today’s belts are made of cogged rubber and operate quite similar way as metal chains. Unlike metallic chains, they don’t need lubrication or cleaning solvents.

Shaft final-drive
Shaft final-drives are sometimes used. This transmission program in automobile transmits capacity to the back wheel via a drive shaft. Shaft drives are popular because they are easy and don’t require as much maintenance as chain-based systems. However, shaft drives are heavier and sometimes may cause unwanted motion, called shaft jacking, in the trunk of the motorcycle. The other components that make a motorcycle a motorcycle are section of the chassis.
Advantages and Disadvantages
The major advantages of shaft-drive are lower maintenance and running costs, and cleanliness. Chain-drive bikes require their chains adjusting regularly plus they can be expensive to displace when they wear out.
They need lubricating often, specifically in bad weather, which may be messy and inconvenient. And chain lube increases the running costs.
Shaft-drive systems are fully enclosed and are unaffected by the weather and only need periodic oil changes.

The disadvantages of shaft-drive are that it is a lot heavier than a chain and absorbs more of the engine’s power before it reaches the trunk wheel

Compared to a Chain system

A shaft-drive may also change the action of the trunk suspension – when the throttle is opened and closed quickly the bike can rise and squat because the shaft is trying to “climb” the cog on the back wheel.

Power Transmission

The chain drive system comprises of two sprockets, one on the gearbox and one on the rear wheel, that are linked by a chain.
In a shaft-driven transmission system in automobile, a shaft connects a gear within the gearbox to another gear in the hub on the rear wheel.
When the engine is sparked, power is transferred along the chain or shaft to the rear wheel, and the bike techniques forward. Either system is often known as “final drive,” as it is the last group of components employed to deliver power to the trunk wheel.

Some producers, notably Harley Davidson, have used belt drives on a few of their model line-ups. BMW, Kawasaki, and Suzuki also have experimented with the belt drive program.