Actuating the chain guide lever
●
Lever A: shifting to a larger
●
Lever B: shifting to a smaller rear
rear sprocket. Lever A latches
sprocket. By pressing lever B once,
in positions 1, 2 and 3.
gear is shifted to the next smaller
rear sprocket.
12
Actuating the derailleur lever (standard)
Lever ‘b’ moves with lever ‘a’ when it is actuated. However, the exertion of pressure on
lever ‘b’ must be avoided. Correspondingly, the exertion of pressure on lever ‘a’ must be
avoided when actuating lever ‘b’. The simultaneous actuation of both levers results in
no gear shift.
Actuating the derailleur lever with trimming
(noise minimisation) optional
Shift procedure
Lever a
Initial position
Lever a
Complete chain
shift lever stroke
Stroke actually
performed
Lever a: shifting to a larger chain sprocket.
If the lever movement does not produce a
complete change of chain sprocket, the lever
must be moved again by amount (X’) in
order to execute the missing lever movement
distance (X) and thus the gear shift.
Lever a
Initial position
Lever a
Complete chain
shift lever stroke
Stroke actually
performed
Lever a: shifting to a larger chain sprocket.
If the lever movement does not produce a
complete change of chain sprocket, the lever
must be moved again by amount (X’) in
order to execute the missing lever movement
distance (X) and thus the gear shift.
Lever b
Initial position
Lever b
Complete
chain
shift lever
stroke
Lever b: shifting from the largest to the middle chain sprocket.
When shifting using lever b, an initial click
stop marks the start of trimming (noise
prevention mechanism) and a second,
stronger click stop marks the complete
chain sprocket shift. After trimming,
the next press concludes the shift
sequence.
Click position
Click position
Lever B moves with lever A when it is actuated;
however, the exertion of pressure on lever B must
be avoided. Correspondingly, the exertion of
pressure on lever A must be avoided when
actuating lever B. The simultaneous actuation of
both levers results in no gear shift.
Lever A
1: Shifting by one gear to the
next larger rear sprocket.
Example: Shifting from
3rd to 4th gear.
2: Shifting by two gears to
a larger rear sprocket.
Example: Shifting from
3rd to 5th gear.
3: Shifting by three gears to
a larger rear sprocket.
Example: Shifting from
3rd to 6th gear.
Example: Shifting from
4th to 3rd gear.
Initial position
Lever A
3rd click position
2nd click position
1st click position
4 3
3
5
3
6
Lever B
Initial position
Lever B
3
4
Operating advice
Lever b
Initial position
Lever b
Complete derailleur
lever stroke
Lever b: shifting from the middle to the smallest chain sprocket
Click position
Click position
DCW BedienA_GB UNI.qxd 24.10.2007 12:50 Uhr Seite 12
