21
tensioned or loosened by turning the adjusting screw through which the cable passes into the gearshift lever
(or grip).
7.10 Derailleur
The derailleur is adjusted by means of screws 1, 2, 3, and 4 which act as locks and limit the derailleurs floor.
Increase or decrease their motion range by adjusting these screws as you pass through all the gears without
the chain falling off the outside or inside of the freewheel or faceplates.
Rear derailleur:
The upper screw (1) prevents the chain from passing beyond the highest gear. The lower
screw (2) prevents the chain from passing beyond the lowest gear.
Front derailleur:
The upper screw (3) prevents the chain from falling on the frame. The lower screw (4)
prevents the chain from falling on the right pedal.
When you want to shift a gear, keep turning the pedals as normal, but without increasing speed while
maneuvering with the derailleur handle until the chain fits properly into the selected gear or gears.
Internal gear hub
With this type of gear mechanism, the gear ratio is shifted by a planetary mechanism inside the rear hub
itself. In this case, the number of gears you have can vary from 3 to 11. The peculiarity of the operation of
the built-in gears is that here the gears shifting can and should be done without turning the pedals.
