Bicycle - Description of how it is made

Date Module Code:
S1000DBIKE-AAA-D00-00-00-00AA-041A-A
Issue No.:
011.00
Issue Date:
06-28-2019
Security Classification:
01
Applicability:
Mountain bicylce and (Mountain storm Mk1 or Brook trekker Mk9)

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:

  • an inspection
  • a maintenance task
  • a repair task

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:
  • Hub
  • Spokes
  • Metal rim
  • Rubber tire
  • Rear wheel
Figure 1. Complete bicycle - Hotspot - 7
  • Front wheel
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:
  • Front chain ring
  • Rear freewheel
  • Front and the rear derailleur
  • Shift lever on the handle bars
  • Cables
Brakes Figure 1. Complete bicycle - Hotspot - 1 The brakes include:
  • Actuators on the handlebars
  • Brake cable
  • Brake callipers
  • Brake pads