Description
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3.3 Wheel and suspension
1
2
4
5
8
7
3
9
6
Figure 4: Components of the wheel, example of front wheel
1 Tyre
2 Rim
3 Suspension fork head with setting wheel
4 Shock absorber
5 Spoke
6 Quick release
7 Hub
8 Valve
9 Fork end of the shock absorber
3.3.1 Valve
Each wheel has a valve. It is used to fill the tyre with 
air. There is a valve cap on each valve. The screw-on 
valve cap keeps out dust and dirt.
The bicycle either has a classical Dunlop valve, a 
Presta valve or a Schrader valve.
EN_034-11592_1.0_0.01_19.08.2018_HERCULES BOSCH Purion MY19_Inhalt.book  Seite 28  Montag, 19. November 2018  11:00 11