Bicycle - Description of how it is made
1 Physical description of a bicycle
A bicycle (refer to Figure 1. Complete bicycle) is a frame and a number of movable components with mechanical parts that are completely open. There are no covers or sheet metal panels that prevent access to the mechanical parts. Thus, you can disassemble the different components of a bicycle (refer to Figure 1. Complete bicycle - Hotspot - 0) to do:
The parts that you can immediately identify on a bicycle are given in Table 1 Bicycle parts.
Bicycle parts
| Item | Refer to | Definition |
|---|---|---|
| Frame | Figure 1. Complete bicycle - Hotspot - 9 | A bicycle frame is made of metal tubes that are welded together. |
| Wheels | The wheels include these parts:
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Figure 1. Complete bicycle - Hotspot - 7 | |
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Figure 1. Complete bicycle - Hotspot - 3 | |
| Seat and seat post | Figure 1. Complete bicycle - Hotspot - 8 | These install into the seat tube with a mechanism you can use to change the height. |
| Handle bars | Figure 1. Complete bicycle - Hotspot - 11 | A horizontal bar that attaches to the stem with grips at the ends that attach to the brake levers and the shifters. |
| Handle bar stem | Figure 1. Complete bicycle - Hotspot - 10 | This attaches the handle bar to the steering tube (head set). |
| Cranks | Figure 1. Complete bicycle - Hotspot - 5 | A lever that extends from the bottom of the bracket to the pedal. |
| Pedals | Figure 1. Complete bicycle - Hotspot - 4 | The two platforms for the feet that attach to the crank. |
| Chain | Figure 1. Complete bicycle - Hotspot - 6 | A circular set of links that connect the chain ring to the cogs on the freewheel. |
| Gears | Figure 1. Complete bicycle - Hotspot - 2 | The gears include:
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| Brakes | Figure 1. Complete bicycle - Hotspot - 1 | The brakes include:
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