MY22H03 - 22_1.0_01.10.2021
42
Description
3.3.7
Mechanical drive system
The pedelec is driven by muscle power, just like a
bicycle.
The force which is applied by pedalling in the
direction of travel drives the front chain wheel.
The chain or belt transmits the force onto the rear
chain wheel and then onto the rear wheel.
Figure 32: Diagram of mechanical drive system
1
Direction of travel
2
Chain or belt
3
Rear chain wheel or belt pulley
4
Front chain wheel or belt pulley
5
Pedal
The pedelec is equipped with either a chain or belt
drive.
3.3.7.1 Chain drive layout
Figure 33: Chain drive with derailleur gears
1
Rear derailleur
2
Chain
A chain drive is compatible with
• Back-pedal brake,
• Hub gear or
• Derailleur gears
3.3.7.2 Belt drive layout
Figure 34: Belt drive
1
Front belt pulley
2
Rear belt pulley
3
Belt
A belt drive is compatible with
• Back-pedal brake and
• Hub gear
A belt drive is not compatible with derailleur gears.
1
3
2
4 5
1
2
1
2
3
