Chain final-drive systems are by far the most common. In this system, a sprocket mounted to the result shaft (i.electronic., the shaft in the transmitting) is linked to a sprocket mounted on the rear wheel of the motorcycle by a metallic chain. When the tranny turns the smaller front sprocket, power is definitely transmitted along the chain to the larger rear sprocket, which in turn turns the trunk wheel. This kind of transmission program in automobile must be lubricated and modified, and the chain stretches and the sprockets put on, 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 utilizing a spring-loaded pulley and hand lever. Natural leather belts often slipped, especially in wet weather, therefore these were abandoned for various other materials and designs. By the 1980s, improvements 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 require lubrication or cleaning solvents.
Shaft final-drive
Shaft final-drives are occasionally used. This transmission program in automobile transmits capacity to the rear wheel with a drive shaft. Shaft drives are popular because they are practical and don’t require as much maintenance as chain-based systems. However, shaft drives are heavier and sometimes cause unwanted motion, called shaft jacking, in the trunk of the motorcycle. The various other components that make 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 can be expensive to displace when they wear out.
They need lubricating often, specifically 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 elements and only require periodic oil changes.
The disadvantages of shaft-drive are that it’s 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 actions of the rear suspension – when the throttle is opened and closed quickly the bike may rise and squat since the shaft is wanting 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 connected by a chain.
In a shaft-driven transmission system in automobile, a shaft connects a gear in the gearbox to another gear in the hub on the trunk wheel.
When the engine is sparked, power is transferred along the chain or shaft to the rear wheel, and the bike moves forward. Either system is often referred to as “final drive,” since it can be the last set 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 attempted 
the belt drive program.