Transmission
The motorcycle transmission refers to the mechanical system that transfers the power generated by the engine to the rear wheel, propelling the motorcycle into motion. The type of transmission may vary depending on the motorcycle model, but the two main types used are manual and automatic.
Manual transmissions :
Clutch: Motorcycles with manual transmissions use a clutch to temporarily disconnect the engine from the gearbox. This allows the rider to change gear without stopping the engine.
Gearbox: The manual gearbox allows the rider to select different gears according to speed and riding conditions. Motorcycles can have a transmission with five, six or more gears.
Gear selector: The gear selector, usually located on the rider's foot, is used to change from one gear to another.
Automatic transmission:
Automatic clutch: Motorcycles with automatic transmission use a clutchless system, where gear shifting is managed automatically by an electronic control unit. This eliminates the need for a clutch lever and manual gear selector.
Continuously variable transmission: Some types of automatic motorcycles use a continuously variable transmission (CVT) system that allows smooth transition between gears without separate steps.
Cardan shaft, chain, belt:
Cardan shaft: Some motorcycle models use a cardan shaft transmission system, which replaces the chain or belt with a drive shaft and cardan housing. The cardan shaft requires less maintenance than the chain or belt, but can be heavier.
Chain: Chain drives use a metal chain to transfer power from the engine to the rear wheel. It's lightweight and highly efficient, but requires regular maintenance.
Belt: Some models, particularly cruisers, use a belt drive, which is quieter and requires less maintenance than a chain. However, it can be heavier and less efficient in terms of performance.
The choice of transmission often depends on the type of motorcycle, the preferred riding style and the rider's personal preferences. Each type of transmission has its advantages and disadvantages, and the choice between them is often a question of compromise in terms of performance, maintenance costs and ease of use.