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ROAD BIKE | OWNER’S MANUAL 2017OWNER’S MANUAL 2017 | ROAD BIKE
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Functional check
Test the brakes in stationary (d) by firmly pulling the brake levers towards the
handlebars. The brake pads of rim brakes must hit the rim evenly with their
entire surface without touching the tyre during braking, in open condition or in
between.
Check whether the brake pads are accurately aligned with the rims. Are the
brake pads 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, it is time to replace them. Be sure to observe the appropriate instruc-
tions of the respective manufacturer.
The brake levers must always remain clear of the handlebars. You should not
even be able to pull them all the way to the handlebars in the event of an emer-
gency stop. If this is the case, however, observe the following chapter “Synchro-
nising and readjusting”.
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 sur-
face. Viewed from the top the brake pads form a “V“ with the trough pointing
to the front (e). This setting is to prevent the brake pads from screeching when
applied. A correctly adjusted brake is only ensured if all of these checks have
been made successfully.
DANGER!
G
Brake cables which are damaged, e.g. frayed, must be replaced immediate-
ly, as they can otherwise fail in a critical moment, possibly causing a crash!
DANGER!
G
Adjusting the position of the brake pads relative to the rims (f) requires a
considerable degree of skill. Replacing and adjusting the brake pads is a job
best left to your SCOTT dealer.
DANGER!
G
Have your rims regularly inspected and measured by your SCOTT dealer.
With an unapplied brake the brake pads should not be too close to the rim
sides, otherwise they could drag along the rim during riding. Before making this
adjustment, observe the notes in the chapter “Brake lever reach adjustment on
SCOTT road bikes and SCOTT cyclo-cross bikes”.
With ongoing brake pad wear, the pressure point at the brake lever moves to-
wards the handlebars. Check the free travel at regular intervals; it should not be
longer than a quarter of the whole travel. For readjustment turn the knurled nut
or bolt (a) through which the cable runs into the brake body until the lever has
the desired travel. Test the brakes subsequently in a place free of traffic.
DANGER!
G
Always test the brakes’ function when stationary after adjusting them, mak-
ing sure the brake pads engage fully with the rim without touching the tyre
when you pull them hard. Make sure you cannot pull the lever all the way to the
handlebars.
Cross/Cantilever brakes
Some SCOTT cyclo-cross bikes have cantilever brakes (b) which provide wider
clearance for muddy tyres and are sometimes fitted with additional brake levers
also allowing braking from the upper part of the handlebars.
Operation and wear
Cantilever brake designs have two brake arms mounted separately on either
side of the rim. When actuating the brake lever, both arms are pressed together
by the cable, the pads touching the rim. and the ensuing friction slows down the
wheel. If water, dirt or oil come into contact with one of the braking surfaces,
this changes the coefficient of friction and deceleration is reduced. This is why
brakes respond with a slight delay and less powerfully in wet weather. In order
to maintain their effectiveness, brakes need to be checked and readjusted regu-
larly (c).
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!
b ca e fd
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