Chain final-drive systems are the most common. In this system, a sprocket installed to the result shaft (i.e., the shaft in the transmission) is connected to a sprocket attached to the rear wheel of the motorcycle by a metallic chain. When the transmitting turns the smaller front sprocket, power can be transmitted along the chain to the bigger rear sprocket, which in turn turns the trunk wheel. This type of transmission system in automobile Drive Chain should 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 often used leather belts, that could be tensioned to provide traction using a spring-loaded pulley and hand lever. Leather-based belts often slipped, especially in wet weather, therefore these were abandoned for other materials and designs. By the 1980s, advancements in materials made belt final-drive tranny system in automobile viable again. Today’s belts are made of cogged rubber and operate quite similar way as metal chains. Unlike metal chains, they don’t require 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 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 rear of the motorcycle. The various other components that produce 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 need their chains adjusting regularly and they could be costly to replace if they wear out.
They want lubricating often, especially in bad weather, which can be messy and inconvenient. And chain lube adds to the running costs.
Shaft-drive systems are fully enclosed and so are unaffected by the weather and only require periodic oil changes.
The disadvantages of shaft-drive are that it is a lot heavier when compared to 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 may rise and squat because the shaft is trying to “climb” the cog on the trunk wheel.
Power Transmission
The chain drive system is made up of two sprockets, one on the gearbox and one on the trunk wheel, that are linked by a chain.
In a shaft-driven transmission system in automobile, a shaft connects a gear within the gearbox to some other gear in the 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 system is commonly known as “final drive,” since it is certainly the last group 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 also have experimented with 
the belt drive system.