Understanding the different parts of a bike can help riders maintain, upgrade, and enjoy their cycling experience more confidently. Whether you’re a beginner, a commuter, or a serious rider, this complete list of 100 bike parts names covers all essential components from the frame to the tiniest bolt.
TABLE OF 100 Bike Parts Names
| Category | Part Name | Description |
|---|---|---|
| Main Structural Components | Frame | Central structure connecting all bike parts. |
| Top Tube | Horizontal bar connecting seat tube to head tube. | |
| Down Tube | Connects head tube to bottom bracket shell. | |
| Seat Tube | Holds seat post and saddle in place. | |
| Chainstay | Runs from bottom bracket to rear dropout. | |
| Seatstay | Connects seat tube to rear dropout above the wheel. | |
| Head Tube | Front tube holding the fork for steering. | |
| Fork | Holds front wheel and connects to handlebars via steerer. | |
| Rear Triangle | Combination of chainstays and seatstays. | |
| Wheels & Tires | Front Wheel | Wheel mounted at the front fork. |
| Rear Wheel | Wheel mounted at the rear triangle. | |
| Rim | Metal outer edge of the wheel holding the tire. | |
| Tire | Rubber part in contact with the road. | |
| Tube | Inflatable inner tube inside the tire (for tube-type setups). | |
| Hub | Center of the wheel housing the axle and bearings. | |
| Spokes | Connect hub to rim, providing tension and strength. | |
| Nipples | Hold spokes to the rim and allow adjustment. | |
| Valve | Used to inflate the tire (Presta or Schrader type). | |
| Drivetrain Parts | Pedals | Where feet push to power the bike. |
| Crank Arms | Connect pedals to the bottom bracket. | |
| Chainring | Front gear(s) attached to the crank. | |
| Chain | Transfers power from front to rear gears. | |
| Cassette | Rear cluster of sprockets for shifting gears. | |
| Freewheel | Allows coasting without pedaling. | |
| Bottom Bracket | Contains bearings where crank arms rotate. | |
| Derailleur (Front) | Moves chain between front chainrings. | |
| Derailleur (Rear) | Moves chain across the rear cassette. | |
| Jockey Wheels | Small pulley wheels in the rear derailleur. | |
| Chain Tensioner | Keeps chain tight, primarily in single-speed bikes. | |
| Braking System | Brake Levers | Attached to handlebars to operate brakes. |
| Brake Cables | Connect levers to brake calipers (for mechanical systems). | |
| Brake Calipers | Clamp onto the rim to slow the wheel (rim brakes). | |
| Disc Brakes | Braking system using a rotor attached to the hub. | |
| Brake Pads | Friction material that presses on rim or rotor. | |
| Brake Rotor | Metal disc used in disc braking systems. | |
| Hydraulic Hose | Fluid-filled line used in hydraulic brakes. | |
| Seating Components | Saddle | The seat for the rider. |
| Seat Post | Tube holding the saddle, inserted into the frame. | |
| Seat Post Clamp | Tightens the seat post inside the frame. | |
| Saddle Rails | Underside metal bars of the saddle. | |
| Steering & Control | Handlebars | Where hands grip to steer the bike. |
| Stem | Connects handlebars to the steerer tube. | |
| Headset | Bearings allowing fork and bars to turn smoothly. | |
| Grips | Rubber or foam handlebar coverings for comfort. | |
| Bar Ends | Extensions on flat bars for alternate hand positions. | |
| Aero Bars | Handlebars for aerodynamic riding. | |
| Gear Shifting Mechanism | Gear Levers | Controls used to shift gears. |
| Shifters (Thumb/Trigger/Grip) | Mounted on handlebars for gear changes. | |
| Gear Cables | Wires connecting shifters to derailleurs. | |
| Cable Housing | Protects gear and brake cables. | |
| Mounting & Fastening Hardware | Quick Release Skewer | Allows easy wheel removal. |
| Thru-Axle | Sturdier axle system used on modern bikes. | |
| Axle | Connects wheel hub to the frame. | |
| Bolts | Used in stem, saddle, bottle cage, etc. | |
| Washers | Distribute bolt pressure. | |
| Nuts | Secure bolts in various parts. | |
| Accessories & Attachments | Bottle Cage | Holds water bottle. |
| Kickstand | Supports bike when parked. | |
| Bike Bell | Alerts others. | |
| Headlight | Front light for night riding. | |
| Taillight | Rear light for visibility. | |
| Reflectors | Mounted on wheels, pedals, or frame for visibility. | |
| Bike Lock | Secures the bike. | |
| Rack | Carries bags or loads on the back. | |
| Fenders | Protect from mud and water splashes. | |
| Mudguards | Alternative term for fenders. | |
| Panniers | Side bags mounted on the rear rack. | |
| Suspension System | Suspension Fork | Front fork with built-in shock absorber. |
| Rear Shock | Absorbs bumps at the rear. | |
| Lockout Lever | Disables suspension temporarily. | |
| Travel | Distance the suspension can compress. | |
| Preload Adjuster | Adjusts initial compression of suspension. | |
| Frame Accessories & Small Parts | Dropout | Holds rear wheel and derailleur. |
| Derailleur Hanger | Connects derailleur to the frame. | |
| Cable Guides | Keep cables in place on the frame. | |
| Chain Guide | Prevents chain from falling off. | |
| Chainstay Protector | Guards chainstay from chain slap. | |
| Frame Bosses | Attachment points for racks, cages, or fenders. | |
| Decals | Stickers or brand logos on the frame. | |
| Safety & Performance Add-ons | Mirror | Attached to handlebars for rearview visibility. |
| GPS Mount | Holds cycling computer or smartphone. | |
| Bell Crank | Found on some internal gear bikes for shifting. | |
| Skid Plate | Protects chainring on mountain bikes. | |
| Toe Clips | Straps to keep feet on pedals. | |
| Cleats | Attach to cycling shoes for clipless pedals. | |
| Internal or Special Components | Internal Gear Hub | Shifting system built into the hub. |
| Dynamo Hub | Generates electricity while riding. | |
| Belt Drive | Chain alternative for low-maintenance bikes. | |
| Electric Motor (e-Bikes) | Provides pedal assistance. | |
| Battery Pack | Powers the motor on electric bikes. | |
| Maintenance & Protection Items | Chain Guard | Covers chain to protect clothes. |
| Frame Bag | Fits inside frame triangle for storage. | |
| Tool Kit Mount | Holds emergency repair tools. | |
| Saddle Bag | Small bag under seat for tools or spares. | |
| Tire Lever | Used for removing tires. | |
| Pump Mount | Holds a mini-pump on the frame. | |
| CO2 Cartridge Holder | Mounts compressed air for quick inflation. | |
| Finishing Touches | End Caps | Plastic or metal pieces for cable housing ends. |
| Handlebar Tape | Wrapped around drop bars for grip and comfort. | |
| Chain Catcher | Prevents chain drops on front shifts. |
This table provides a complete and organized reference for the 100 bike parts, enhancing understanding for maintenance, upgrades, or general cycling knowledge.
🚴♂️ Main Structural Components
These are the foundation of any bicycle. They provide support and shape the overall bike design.
1. Frame
The central structure that connects all bike parts together.
2. Top Tube
The horizontal bar on most frames that connects the seat tube to the head tube.
3. Down Tube
Connects the head tube to the bottom bracket shell.
4. Seat Tube
Holds the seat post and saddle in place.
5. Chainstay
Runs from the bottom bracket to the rear dropout.
6. Seatstay
Connects the seat tube to the rear dropout above the wheel.
7. Head Tube
The front tube that holds the fork and allows steering.
8. Fork
Holds the front wheel and connects to the handlebars through the steerer.
9. Rear Triangle
Combination of chainstays and seatstays.
🛞 Wheels & Tires
These parts keep the bike rolling smoothly and gripping the road or trail.
10. Front Wheel
The wheel mounted at the front fork.
11. Rear Wheel
The wheel mounted at the rear triangle.
12. Rim
The metal outer edge of the wheel that holds the tire.
13. Tire
Rubber part in contact with the road.
14. Tube
Inflatable inner tube inside the tire (on tube-type setups).
15. Hub
Center of the wheel where the axle and bearings sit.
16. Spokes
Connect the hub to the rim, providing tension and strength.
17. Nipples
Hold the spokes to the rim and allow adjustment.
18. Valve
Used to inflate the tire — Presta or Schrader type.
⚙️ Drivetrain Parts
These parts make the bike move when you pedal.
19. Pedals
Where your feet push to power the bike.
20. Crank Arms
Connect the pedals to the bottom bracket.
21. Chainring
Front gear(s) attached to the crank.
22. Chain
Transfers power from the front to the rear gears.
23. Cassette
Rear cluster of sprockets for shifting gears.
24. Freewheel
Allows coasting without pedaling.
25. Bottom Bracket
Contains bearings where the crank arms rotate.
26. Derailleur (Front)
Moves the chain between front chainrings.
27. Derailleur (Rear)
Moves the chain across the rear cassette.
28. Jockey Wheels
Small pulley wheels in the rear derailleur.
29. Chain Tensioner
Keeps chain tight, mostly found in single-speed bikes.
🛑 Braking System
These parts help you control your speed and stop safely.
30. Brake Levers
Attached to the handlebars to operate brakes.
31. Brake Cables
Connect levers to the brake calipers (for mechanical systems).
32. Brake Calipers
Clamp onto the rim to slow the wheel (rim brakes).
33. Disc Brakes
Braking system using a rotor attached to the hub.
34. Brake Pads
Friction material that presses on rim or rotor.
35. Brake Rotor
Metal disc used in disc braking systems.
36. Hydraulic Hose
Fluid-filled line used in hydraulic brakes.
🪑 Seating Components
Comfort is key for any ride, and these parts make a big difference.
37. Saddle
The seat you sit on.
38. Seat Post
Tube that holds the saddle and inserts into the frame.
39. Seat Post Clamp
Tightens the seat post inside the frame.
40. Saddle Rails
Underside metal bars of the saddle.
🕹️ Steering & Control
These parts help you guide your bike with control and comfort.
41. Handlebars
Where your hands grip to steer the bike.
42. Stem
Connects the handlebars to the steerer tube.
43. Headset
Bearings that allow the fork and bars to turn smoothly.
44. Grips
Rubber or foam handlebar coverings for comfort.
45. Bar Ends
Extensions on flat bars for alternate hand positions.
46. Aero Bars
Special handlebars for aerodynamic riding.
⚒️ Gear Shifting Mechanism
Smooth gear shifting relies on these components.
47. Gear Levers
Controls used to shift gears.
48. Shifters (Thumb/Trigger/Grip)
Mounted on handlebars for gear changes.
49. Gear Cables
Wire that connects shifters to derailleurs.
50. Cable Housing
Protects gear and brake cables.
🔧 Mounting & Fastening Hardware
Essential nuts, bolts, and clamps that hold everything together.
51. Quick Release Skewer
Used for easy wheel removal.
52. Thru-Axle
Sturdier axle system used on modern bikes.
53. Axle
Connects the wheel hub to the frame.
54. Bolts
Found throughout the bike — stem, saddle, bottle cage, etc.
55. Washers
Help distribute bolt pressure.
56. Nuts
Secure bolts in various parts.
🧰 Accessories & Attachments
Add convenience and safety to your cycling experience.
57. Bottle Cage
Holds your water bottle.
58. Kickstand
Supports the bike when parked.
59. Bike Bell
Used to alert others.
60. Headlight
Mounted at front for night riding.
61. Taillight
Rear light for visibility.
62. Reflectors
Mounted on wheels, pedals, or frame.
63. Bike Lock
Used to secure the bike.
64. Rack
Carries bags or loads on the back.
65. Fenders
Protect from mud and water splashes.
66. Mudguards
Alternative term for fenders.
67. Panniers
Side bags mounted on the rear rack.
📦 Suspension System (for mountain or hybrid bikes)
These parts absorb shock and improve comfort.
68. Suspension Fork
Front fork with built-in shock absorber.
69. Rear Shock
Absorbs bumps at the rear.
70. Lockout Lever
Allows suspension to be disabled temporarily.
71. Travel
Distance the suspension can compress.
72. Preload Adjuster
Adjusts the initial compression of suspension.
🧩 Frame Accessories & Small Parts
Often overlooked, but very important for function and durability.
73. Dropout
Holds the rear wheel and derailleur.
74. Derailleur Hanger
Connects the derailleur to the frame.
75. Cable Guides
Keeps cables in place on the frame.
76. Chain Guide
Prevents the chain from falling off.
77. Chainstay Protector
Guards the chainstay from chain slap.
78. Frame Bosses
Attachment points for racks, cages, or fenders.
79. Decals
Stickers or brand logos on the frame.
🛡️ Safety & Performance Add-ons
Designed to enhance ride safety, control, and speed.
80. Mirror
Attached to handlebars for rearview visibility.
81. GPS Mount
Holds a cycling computer or smartphone.
82. Bell Crank
Found on some internal gear bikes for shifting.
83. Skid Plate
Protects the chainring on mountain bikes.
84. Toe Clips
Straps that keep your feet on pedals.
85. Cleats
Attach to cycling shoes for clipless pedals.
🛠️ Internal or Special Components
Found in more advanced or specialized bikes.
86. Internal Gear Hub
Shifting system built into the hub.
87. Dynamo Hub
Generates electricity while riding.
88. Belt Drive
Alternative to chain, found in low-maintenance bikes.
89. Electric Motor (e-Bikes)
Provides pedal assistance.
90. Battery Pack
Powers the motor on electric bikes.
🧼 Maintenance & Protection Items
Useful add-ons to improve bike life and ride quality.
91. Chain Guard
Covers the chain to protect clothes.
92. Frame Bag
Fits inside the triangle for storage.
93. Tool Kit Mount
Holds emergency repair tools.
94. Saddle Bag
Small bag under the seat for tools or spares.
95. Tire Lever
Used for removing tires.
96. Pump Mount
Holds a mini-pump on the frame.
97. CO2 Cartridge Holder
Mounts compressed air for quick inflation.
🧯 Finishing Touches
Final pieces that refine the look and function.
98. End Caps
Plastic or metal pieces for cable housing ends.
99. Handlebar Tape
Wrapped around drop bars for grip and comfort.
100. Chain Catcher
Prevents chain drops on front shifts.
Conclusion
This complete 100 bike parts names list gives you a solid understanding of every major and minor component that makes up a bicycle. Whether you’re buying parts, upgrading, or learning maintenance, knowing these terms will help you speak the language of cycling with clarity and confidence.
