The Headset On The Scott Bike; Checking And Readjusting - Scott Road Owner's Manual

DANGER!
Do not combine carbon handlebars with bar ends, unless they have been
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specifically approved. Do not shorten carbon handlebars or clamp the
brake levers and shifters more in the middle than indicated or needed. Risk of
breakage!
DANGER!
Make sure all carbon clamping areas are absolutely free of grease and other
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lubricants! Grease will penetrate the surface of the carbon material, thereby
reducing the coefficient of friction. This will no longer provide reliable clamping
within the prescribed torque values. Once greased, carbon components may
never again ensure reliable clamping! Use a special carbon assembly paste (a)
instead as offered by various manufacturers.
CAUTION!
Most clamps of bike carrier systems are potential sources of damage to
A
large-diameter frame tubes! As a result thereof carbon frames can fail dur-
ing use without previous warning. However, there are special-purpose models
which are suitable, available in the car accessory trade. Inform yourself there or
ask your SCOTT dealer for advice.
CAUTION!
Do not clamp a carbon frame or seat post in the holding jaws of a work-
A
stand (b)! The components may sustain damage. Mount a sturdy (alumini-
um) seat post instead and use it to clamp the frame, or choose a work stand that
holds the frame at three points inside the frame triangle or which clamps the
fork and bottom bracket shell.
NOTE!
Protect the exposed areas of your carbon frame (e.g. the head tube and
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the underside of the down tube) against rubbing cables or stone chips with
special pads (c+d) your SCOTT dealer keeps for sale.
a b
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c
OWNER'S MANUAL 2017 | ROAD BIKE
NOTE!
Carbon fibre components are particularly vulnerable to damage caused
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by excessive clamping force. Carbon assembly paste creates extra friction
between two surfaces, allowing the necessary torque value to be reduced by
up to 30 % (a). This is especially useful in the clamping areas of handlebars and
stem, steerer tube and stem as well as seat post, i.e. three areas where too much
clamping force can damage either component, causing component failure or
voiding the warranty. By reducing the clamping force, carbon assembly paste
relieves stress on sensitive carbon surfaces, preventing damage to fibres or the
cracking of the carbon substructure.

THE HEADSET ON THE SCOTT BIKE

The headset (e) connects the fork to the frame, but allows it to move freely.
It must turn with virtually no resistance, if the SCOTT bike is to run straight,
stabilising itself as it travels. Shocks caused by uneven road surfaces expose the
headset to considerable levels of stress. In this way it can become loose and go
out of correct adjustment.
DANGER!
Riding the bicycle with a loose headset increases the stress on fork and
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bearings. This can lead to damage to the fork. Risk of falling!

Checking and readjusting

Check the headset for play by placing your fingers around the upper head
tube race. Bring your weight to bear on the saddle, pull the front brakes with
your other hand and push the SCOTT bike firmly back and forth with the wheel
remaining on the ground (f). If the bearing has play, you will feel the upper head
tube race moving in jerks relative to the lower head tube race - visible as a small
gap in between the head tube races.
d
ROAD BIKE | OWNER'S MANUAL 2017
e f
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