Chain final-drive systems are the most common. In this technique, a sprocket installed to the result shaft (i.electronic., the shaft in the tranny) is linked to a sprocket mounted on the rear wheel of the motorcycle by a metallic chain. When the tranny turns the smaller sized front sprocket, power is certainly transmitted along the chain to the bigger rear sprocket, which in turn turns the rear wheel. This kind of transmission system 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 to chain drives. Early motorcycles frequently used leather belts, that could be tensioned to give traction using a spring-loaded pulley and hand lever. Natural leather belts often slipped, specifically in wet weather, so they were abandoned for various other materials and designs. By the 1980s, improvements in components made belt final-drive transmission system in automobile practical again. Today’s belts are constructed with cogged rubber and operate much the same way as steel chains. Unlike steel chains, they don’t need lubrication or cleaning solvents.
Shaft final-drive
Shaft final-drives are sometimes used. This transmission program in automobile transmits power to the back wheel via a drive shaft. Shaft drives are popular because they are chain sprocket convenient and don’t require as much maintenance as chain-based systems. Nevertheless, shaft drives are heavier and sometimes cause unwanted motion, called shaft jacking, in the rear of the motorcycle. The additional components that produce a motorcycle a motorcycle are portion of the chassis.
Advantages and Disadvantages
The major benefits of shaft-drive are lower maintenance and running costs, and cleanliness. Chain-drive bikes need their chains adjusting frequently and they can be expensive to replace if they wear out.
They need lubricating often, especially in bad weather, which may be messy and inconvenient. And chain lube increases the running costs.
Shaft-drive systems are completely enclosed and are unaffected by the elements and only require 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
In comparison to a Chain system
A shaft-drive can also change the actions of the trunk suspension – when the throttle is opened and closed quickly the bike may rise and squat because the shaft is wanting 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 linked by a chain.
In a shaft-driven transmission system in automobile, a shaft connects a gear inside the gearbox to some other gear inside a 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 moves forward. Either program is commonly referred to as “final drive,” as it is definitely the last group of components employed to deliver power to the trunk wheel.
Some manufacturers, notably Harley Davidson, have used belt drives on some of their model line-ups. BMW, Kawasaki, and Suzuki have also experimented with the belt drive system.