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MOUNTAIN BIKE AND MOUNTAIN BIKE-PEDELEC | ORIGINAL OPERATING INSTRUCTIONS 2017ORIGINAL OPERATING INSTRUCTIONS 2017 | MOUNTAIN BIKE AND MOUNTAIN BIKE-PEDELEC
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RIM BRAKES
V-Brakes and cantilever brakes
Operation and wear
V-brake and cantilever brake designs (d) have two brake arms mounted sepa-
rately on either side of the rim. When actuating the brake lever, both arms are
pressed together by the cable, the pads touching the rim.
The friction generated by braking causes wear to the brake pads as well as to
the rims. Frequent rides in the rain and dirt and over hilly terrain can accelerate
wear on both braking surfaces. Some rims are provided with wear indicators,
e.g. grooves or circular indentations. If the rim is worn down to the point where
the grooves or indentations are no longer visible, they need to be replaced.
Once the abrasion of the rim has reached a certain critical point, the rim may
break under the tyre pressure. This can make the wheel jam or the inner tube
burst, both of which can cause an accident. Risk of falling!
Functional check
Check whether the brake pads are accurately aligned with the rims and still
sufficiently thick. You can judge the wear of the brake pads by the appearance
of grooves.
If the pads are worn down to the bottom of the grooves (e), it is time to replace
them. Be sure to observe the appropriate instructions of the respective manu-
facturer.
See your SCOTT dealer and ask them to examine the remaining thickness of the
rims when you have worn through your second set of brake pads at the latest.
Your SCOTT dealer has special measuring devices for determining the remain-
ing thickness of the rims.
The brake pads must hit the rim simultaneously, first touching it with the front
portion of their surface. At the moment of first contact the rear portion of the
pads should be a millimetre away from the braking surface. Viewed from the top
the brake pads form a “V” with the trough pointing to the front (f). This setting
is to prevent the brake pads from screeching when applied.
With disc brakes (a) prolonged braking or permanent dragging of brake pads
can lead to an overheating of the brake system. This can result in a reduction of
the braking power or brake failure. Risk of accident!
When riding downhill, get used to braking hard and then releasing the brake
again (b), whenever the road surface and the situation allows for it. If you are in
doubt about the braking action, stop and let the brake system cool down.
DANGER!
G
The assignment of brake lever to brake calliper can vary, e.g. left lever acts
on front brake. Have a look at the SCOTT bike card and check whether the
brake lever of the front brake is on the side you are used to (right or left). If it is
not, ask your SCOTT dealer to switch the brake levers before you set off for the
first time.
DANGER!
G
Be careful while getting used to the brakes. Practise emergency stops in a
place clear of traffic until you are comfortable controlling your SCOTT bike.
This can save you from having accidents in road traffic.
DANGER!
G
Wet weather reduces the braking effect and the road grip of the tyres. Be
aware of longer stopping distances when riding in the rain, reduce your
speed and actuate the brakes carefully.
DANGER!
G
Ensure that braking surfaces and brake pads are absolutely free of wax,
grease and oil. Risk of accident!
CAUTION!
A
When replacing any parts be sure to only use parts that bear the appropri-
ate mark and, to be on the safe side, original spare parts (c). Your SCOTT
dealer will be pleased to help you.
NOTE!
I
Be sure to read the manuals of the brake manufacturers on this SCOTT info
CD before you start to readjust or to service the brake or before doing any
work whatsoever.
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