Checking And Readjusting The Gears; Rear Derailleur - Canyon road bike Manual

60 GEARS HOW THEY WORK AND HOW TO USE THEM
The shifting of a gear lever is communicated to the
rear derailleur via bowden cable. Then the rear derail-
leur swivels, causing the chain to climb onto the next
sprocket. It is therefore important when changing
gears to continue pedalling smoothly without force
as long as the chain is moving between sprockets or
chainrings!
There are, however, special guides in the chainrings
which allow for changing gears under force.
Changing gears under load shortens, however, the
service life of your chain considerably. Therefore,
avoid changing gears while pedalling with force, in
particular when changing gears with the front derail-
leur.
Canyon road bikes are usually equipped with 20 or
30-speed derailleur gears and two to three chain-
rings at the front and ten sprockets at the rear wheel
hub. Some gears with particular chain run should be
avoided. Gears with an extremely oblique run of the
chain enhance a higher inner friction, which reduces
the power transmission efficiency and hastens wear
of the chain.
An unfavourable run of the chain is when the small-
est chainring (front derailleur) is used with one of the
two or three outermost (smallest) sprockets (rear
derailleur) or when the largest chainring is used with
one of the inmost (largest) sprockets.
Practise changing gears in a place free of
traffic until you are familiar with the func-
tioning of the different levers or twist grips. If
you do so in road traffic, your attention might be
drawn off from possible risks.
Unfavourable run of the chain – chain on the smallest chainring and
the outmost sprocket
Unfavourable run of the chain – chain on the biggest chainring and
the inmost sprocket
Avoid gears which involve an extremely
i
oblique run of the chain.
Do not shift under load, as this will shorten
the durability of the chain considerably.
furthermore, this can lead to a chain-suck, i.e.
the chain can get jammed between chainstay and
chainrings. Avoid shifting gears while pedalling
with force, in particular when shifting with the
front derailleur.

CHECkING AND READjUSTING THE GEARS

The derailleur gears were thoroughly adjusted by the
Canyon team before delivery of your Canyon. The
bowden cables may, however, give way on the first
kilometres making gear changing imprecise. This will
result in the chain not wanting to climb onto the next
larger sprocket.

REAR DERAILLEUR

With road bikes the adjustment is carried out by
turning the adjusting bolts at the right cable stop
on the down tube. There is another adjusting bolt
directly at the rear derailleur.
Increase the tension of the bowden cable by turn-
ing the adjusting bolt through which it passes at the
entry to the shift lever or rear derailleur.
After tensioning the bowden cable check wheth-
er the chain readily climbs onto the next larger
sprocket. To do this you either have to turn by hand
the cranks or ride your Canyon.
If the chain readily climbs onto the next larger
sprocket, check whether it also readily shifts to the
small sprockets when you change to a higher gear.
You may need several tries to get the derailleur sys-
tem properly adjusted.
Road bikes have non-adjustable shift levers and
instead are provided with stepwise adjustable limit
stops on the down tube. Just release the bolts in
half-turn steps.
Adjusting the front and rear derailleur
accurately is a job for an experienced me-
chanic.
CHECKING AND READJUSTING GEARS
Retightening of the bowden cable at the adjusting bolt of the rear
derailleur
Look from the rear at the rear gear cluster and check whether the
pulleys are perfectly aligned with the teeth of the adequate sprocket
If you want to try adjusting it yourself,
i
be sure to read the operating instructions
of the manufacturer. In case you face any problem
with the gears, please contact our service hotline
at +44 (0) 20 8501 2582.
Ask a helper to lift the rear wheel. By turn-
i
ing the cranks and shifting through you
can easily check the function.
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