Chain final-drive systems are by far the most common. In this system, a sprocket installed to the output shaft (i.electronic., the shaft in the transmitting) is linked to a sprocket mounted on the trunk wheel of the motorcycle by a metallic chain. When the tranny turns the smaller sized front sprocket, power is usually transmitted along the chain to the bigger rear sprocket, which then turns the trunk 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, that could be tensioned to provide 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 styles. By the 1980s, advancements in materials 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 steel 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 need 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 various other components that make a motorcycle a motorcycle are section 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 if they wear out.
They want lubricating often, especially 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
In comparison to a Chain system
A shaft-drive may also change the 
actions of the trunk suspension - when the throttle is opened and closed sprockets 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 trunk wheel, that are linked by a chain.
In a shaft-driven transmission program in automobile, a shaft connects a gear within the gearbox to another 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 system is commonly referred to as “final drive,” since it is usually the last group of components employed to provide power to the rear wheel.
Some producers, notably Harley Davidson, have used belt drives on some of their model line-ups. BMW, Kawasaki, and Suzuki have also attempted the belt drive system.