3
Frame:
1 Top tube
2 Down tube
3 Seat tube
4 Chainstay
Stem
Handlebar
Brake/shift lever
Headset
Brake
Fork
Drop-out
Wheel:
Quick-release
Tire
Spoke
Rim
Valve
Hub
Saddle
Seat post
Seat post clamp
Brake
Cassette sprockets
Front derailleur
Rear derailleur
Chain
Chainring
Crank set
2
3
4
1
