A folding bike is a types of bicycle that can be folded because it has a hinge on the bike frame. This bike is very comfortable to use for casual cycling with relatives and family when recreation or on vacation because it is easy to carry everywhere.
In general, folding bikes have shapes and components that are almost the same as ordinary bikes or sports bikes. However, it has slight differences such as a slightly short and long frame and a few hinges on the frame so that it can be folded.
The following is an explanation of the parts of folding bike and their functions:

1. Handlebar
The handlebar is the control part of the bike so that it can adjust which direction the bike will go. In this handlebar, there is a front and rear brake (brake lever) and a bike grip.
Handlebar is divided into several components, namely handlebar height adjustment, handlebar post, and handlebar post folding box.
- Handlebar height adjustment functions to adjust the height and shortness of the bicycle handlebar poles. With this part, we can adjust the height of the bicycle handlebar based on the height.
The handlebar post is the handlebar pole or the neck of the handlebar.
The handlebar post folding box is a part of the handlebar that can fold.
2. Grips
Bike grips are the part where we place both hands to control the bike handlebar controls. Usually, this part is made of rubber and slightly jagged arises for a stronger and more comfortable grip.
3. Brake Lever
A brake lever is a brake that functions to stop the rotation of the bike wheels. There are 2 brakes on a bike, namely the front brake and the rear brake.
4. Revo-Shifter
Revo-shifter is part of the bicycle transition system which has more than one gear with a function to adjust the gearshift of the bike.
5. Brake Cantilever
The brake cantilever is part of the brake support that functions directly to stop the motion of the bike wheels. This part is controlled by the brake lever on the bike handlebar.
6. Rim
The rim serves as a place for bike wheels and tires to be attached. In this part attached spokes or wheel nets.
7. Spokes
Spokes are wheel nets that support the wheels and support the shape of the wheels to remain round.
8. Front Hub
The front hub is a kind of bolt where the wheels are attached and give the wheels the flexibility to rotate. Forks are attached to this part.
9. Tire
The tire is a bike tire that functions as a wheel holder by applying gas pressure so that the wheels can rotate properly and keep the wheel from bending.
10. Forks
Forks functions to support tires that are connected to the bike hub. It is called a fork because it looks like a double-edged fork attached to the front hub.
11. Valve
The valve works as an entryway for air gases to fill bike tires. Usually, the valve has a cover to prevent the tire from being deflated or getting dirt (dust) into it.
12. Fender
The fender serves to protect the cyclist from splashing water or dirt from the bike tires. Usually, this part is made of pliable plastic that surrounds the top of the wheel.
13. Mudflap Fender
The mudflap fender serves as the closing part of the fender itself. The shape is slightly curved for easy cleaning.
14. Pedal
The pedal serves as a part for placing the foot when pedaling a bicycle. This part when pedaling will rotate the crankset. This part is usually made of iron wrapped in rubber or other elastic objects.
15. Crank
The crank is a part of a toothed plate connected by a chain to the rear wheels. This part is moved by the pedal and produces rotation which is then used to rotate the rear wheel of the bicycle.
16. Frame Holding Box
The frame holding box functions as a folding part. This component is the basic differentiator from other bikes. This allows the folding bike to be folded to half its original size.
17. Chain
The chain functions to continue the rotation generated by the crank to the rear wheels of the bike. The shape of this part is in the form of a long chain that connects and is mounted on the crank, chainstay, and cassette which is located on the rear wheel of the bike.
18. Rear Derailleur
The rear derailleur functions as a part that moves teeth. This part is governed by shifter.
19. Chainstay
Chainstay functions as a fixed chain that supports the chain and rear wheel rotation.
20. Free Hub
The freehub functions as a bolt that holds the rear wheels and provides flexibility for the rear wheels to rotate.
21. Seatstay
Seatstay serves as a part that supports the bike pillion.
22. Cassette
Cassette is a part that serves to accommodate bike rigs and bike chains. This is where the gear shift and the movement of the bike chain occur.
23. Elastic Rack Bands
This section has the same function as the fender, which is to protect themselves from splashing water or dirt from bike tires, especially for people who are hitchhiking.
24. Rack
Rack serves as a seat for the person who is hitchhiked.
25. Seat Tube
This part becomes the proper installation of the seatpost and bicycle saddle.
26. Seatpost Height Adjustment
This part can be raised and lowered to adjust the height of the bicycle saddle. We can adjust it according to height.
27. Seatpost
Seatpost is a saddle post that serves to support the saddle.
28. Saddle
The saddle is the part that is used as a seat for cyclists. Usually, this part is made of plastic covered with dense foam so that the cyclist can sit comfortably.
Those are folding bike parts There may be several variations of components that are not mentioned in the article because it all depends on the type of the bike.