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Derby Cycle 2012 General Manual

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42 I General User Manual
21.2 Brake lever
21.2.1 Standard brake lever
The bike is equipped as standard with a suitable brake
lever. Check regularly that when you operate the brake
lever it does not reach the handlebar and make contact
with it. With the brake lever pulled, push the bike forward
and check whether the braking performance is sucient.
If the bike rolls slightly forwards, you will need to have
the brake cable readjusted or the brake pads replaced.
Brake cable adjust-
ment screw
Lever pull range
adjustment screw Fastening screw
21.3 Hub brakes
Hub brakes are virtually maintenance-ee as the brake
block is inside the hub.
If applied continuously for an extended period, hub
brakes become very hot. This reduces the braking
performance and ultimately complete failure of the
brake. You should adapt your handling accordingly.
21.3.1 Drum and roller brakes
With the roller brake or drum brake, the braking force is
transmitted via a cable om the hand brake lever to the
brake system. If applied continuously for an extended
period, roller brakes or drum brakes become very hot.
This reduces the braking performance and can result in
complete failure of the brake. You should adapt your han-
dling accordingly.
The brake lever of roller and drum brakes requires
special tuning.
Check regularly that the screws on the brake lever
are tight.
Turn them clockwise to retighten if necessary. For
the correct tightening torque, refer to
Chapter 30
"Technical data".
Pull on the ont wheel or rear wheel hand brake
lever with the same amount of force as you would
apply when braking sharply during a ride. Then
push the bike forwards. The rear wheel should lock.
The ont wheel should decelerate so rapidly that
the bike starts to tip forwards.
Lubricate the cable-pull regularly.
Brake pads are wear parts. Have the brake pads for
back-pedal, roller and drum brakes checked regularly,
and replaced if necessary, by a professional bike
workshop.
If you have not used your bike for a while, there may
be surface rust in the brake drum which can increase
the braking force. You should therefore brake gently
several times when riding o to remove the surface
rust. This prevents sudden blocking of the brake.
… 42 …


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