What is an actuator? What parts are included?
by Vy Nhat on Jun 08, 2023
The transmission is considered the most important part of a sports power bike. It contributes to a safe and smooth user experience. The price of a power bike depends a lot on the quality of the groupset.
1. What is an actuator?
The transmission or groupset is the collection of all the components that make up the transmission of power from the pedals to the rear wheel. These include, sprocket, shifter, chain, handlebar,...
When you buy a new bike after the frame, the bike groupset is the second most important factor in determining the price of the bike. In general, the higher the price tag, the more functional the transmission, the lighter, smoother operation, and the better materials.
2. Bicycle transmission structure
Shifting forks: A typical sport bike has 1 to 3 discs. On each disc, there are gears that connect to the chain. When you ride a bike, pedaling force is transmitted from the pedals through the sprocket to the gears on the disc to the chain to the sprocket on the rear wheel.
Disc springs: Each bike has only 2 discs. The upper end of the sprocket is attached to the front disc and the lower end is attached to the pedal.
Center axle: Placed in the middle of the chassis to help the pedals and chain work smoothly. Currently, on the market there are many types of shafts with different sizes and materials. Depending on the type of transmission, the axle has different materials and sizes.
Chain / chain: The chain is the part that drives between the front disc and the rear wheel. The chain goes through the derailleurs so that the driver can easily change gears and shift to the desired gear.
Gear lever: The gear lever is connected to derailleurs to change the chain running on different discs and cassettes. Most mountain bikes have a gear lever located on the handlebars, right next to the handle. The left gear lever changes the front derailleur and the right shifts the rear derailleur. Currently, on some high-end bicycles, electronic gearshift levers are used.
Derailleurs: used in conjunction with the gear lever to change gears running on the front and rear discs. There are usually two derailleurs, one in the front and one in the back. The front derailleur changes the front disc while the rear derailleur changes the rear cassette. Currently, on some sports bikes, there is no Derailleur in the front.
Rear sprocket : Is a cluster of different gears to set the weight / light when cycling. The number of gears ranges from 6 to 12. The larger the chain, the easier it is to pedal, and the smaller the gear, the heavier the pedal.
Above is information about bicycle transmission. Hope the above information is useful to you and choose the most suitable bike groupset for you.