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6.5.9
Brake
The brake lever travel distance can be adjusted
to ensure that it can be reached more easily.
The pressure point can also be adjusted to the
rider's preferences.
6.5.9.1 Brake lever position
Having the brake lever in the correct position
prevents the rider from stretching their wrist too
far. Moreover, the brake can also be operated
without any discomfort and without changing the
handle position or releasing the handle.
Apply the brake lever with the third finger phalanx
to brake gently in bursts.
The setting for the middle finger is used for riders
who brake with their middle finger or with two
fingers.
1 Position your hand on the handle in such a way
that the outer heel of the hand is flush with the
end of the handlebar.
2 Extend the index finger (about 15°).
15°
Figure 89: Brake handle position
3 Push brake lever outwards until the third finger
phalanx sits in the brake lever recessed grip.
6.5.9.2 Brake lever tilt angle
The nerves that pass through the carpal tunnel
are connected to the thumb and the index and
middle fingers. An excessively steep or
excessively flat brake angle will cause the wrist to
bend, thus narrowing the carpal tunnel. This can
cause numbness and tingling in the thumb and
index and middle fingers.
1 Calculate the difference between the height of
the handlebars and the saddle height to
determine the saddle-handlebar height
difference.
Figure 90: Example of 4 different handlebar heights (A, B,
C and D) and the saddle height (E)
Calculation
–
A
E
–
B
E
–
C
E
–
D
E
Table 34: Examples of saddle-handlebar height difference
Adjust the angle of the brake levers so that they
form a natural extension of the forearm.
Operation
A
B
E
C
D
Saddle-handlebar height
difference [mm]
>10
0...10
0 ...-10
<-10
89
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