Chain final-drive systems are the most common. In this technique, a sprocket installed to the result shaft (i.electronic., the shaft in the transmission) is linked to a sprocket mounted on the trunk wheel of the motorcycle by a steel chain. When the transmitting turns the smaller sized front sprocket, power is transmitted along the chain to the bigger rear sprocket, which then turns the rear wheel. This kind of transmission program in automobile must be lubricated and altered, and the chain stretches and the sprockets use, requiring periodic replacements.

Belt drives
Belt drives are an alternative solution to chain drives. Early motorcycles often used leather belts, that could be tensioned to provide traction utilizing a spring-loaded pulley and hand lever. Leather-based belts often slipped, especially in wet weather, so these were abandoned for other materials and designs. By the 1980s, advances in components made belt final-drive transmitting system in automobile viable once again. Today’s belts are constructed with cogged rubber and operate quite similar way as metal chains. Unlike steel chains, they don’t require lubrication or cleaning solvents.

Shaft final-drive
Shaft final-drives are sometimes used. This transmission system in automobile transmits power to the rear wheel with a drive shaft. Shaft drives are well-known because they are practical 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 produce a motorcycle a motorcycle are part of the chassis.
Advantages and Disadvantages
The major benefits of shaft-drive are lower maintenance and running costs, and cleanliness. Chain-drive bikes require their chains adjusting frequently and they could be expensive to replace when they wear out.
They need lubricating often, especially in bad weather, which can be messy and inconvenient. And chain lube increases the running costs.
Shaft-drive systems are completely enclosed and so are unaffected by the weather and only require periodic oil changes.

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

Compared to a Chain system

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

Power Transmission

The chain drive system is made up of two sprockets, one on the gearbox and one on the rear wheel, that are connected by a chain.
In a shaft-driven transmission system in automobile, a shaft connects a gear within the gearbox to another gear inside a hub on the trunk wheel.
When the engine is sparked, power is transferred along the chain or shaft to the trunk wheel, and the bike moves forward. Either program is commonly referred to as “final drive,” as it can be the last set of components employed to provide power to the trunk wheel.

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