Operation Manual
36   I General User Manual
Hbl(B)
Lever 
b
Shiing om a large to a smaller chainring 
Press lever b once to move the chain om a large to a 
smaller chainring.
Operating the standard rear derailleur shiing lever
Lever 
a
 starting position
1
2
Shiing om a small to a larger sprocket 
To shi by one gear only, push lever a to position 1. To 
shi by two gears, push the shiing lever to position 2. 
You can shi a maximum of 3 gears using this method.
Lever 
b
Shiing om a large to a smaller sprocket 
Push once to shi to a smaller sprocket.
Lever 
b
Gear shi complete 
stroke
Click-in position
Click-in position
Trimming operation
When lever b is operated, there is one click where trim-
ming (the noise prevention mechanism) engages, and a 
second stronger click when the gear shi stroke is com-
plete. The noise prevention mechanism no longer clicks 
once the trimming operation is complete which means 
that only the click-in positions will be heard when shiing 
between sprockets.
Chain position
Front derailleur movement
If the chain is on the large chainring and the large sprock-
et, the chain will rub the ont derailleur producing a char-
acteristic noise. When this happens, press lever b lightly 
to the point where it clicks, this causes the ont derailleur 
to move slightly towards the smaller chainring, thereby 
eliminating the noise.
Twist-grip shiers
To shi up or down one gear only, turn the twist-grip shi-
er by one increment forwards or backwards.
Zunehmende
Pedalkraft
Zunehmende
Pedalkraft
Abnehmende
Pedalkraft
Abnehmende
Pedalkraft
increasing 
pedal force
increasing pedal force
reducing pedal force
reducing pedal 
force
If you wish to shi up or down several gears at once, con-
tinue turning the shiing lever by the required number of 
shi positions and in the required direction.










