Rear Derailleur - Canyon Mountain bike Manual

64 GEARS HOW THEY WORK AND HOW TO USE THEM
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.
The front derailleurs of Canyon mountain bikes are
usually equipped with a very small chainring. They
have 24 or 27 gears. Some gears with particular chain
run should be avoided. Gears with an extremely ob-
lique run of the chain enhance a higher inner friction,
which reduces the power transmission efficiency and
hastens wear of the chain.
An unfavorable 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.
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.
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 ob-
i
lique run of the chain.
Adjusting the front and rear derailleur
!
accurately is a job for an experienced me-
chanic.
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.
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

Increase the tension of the bowden cable by turning
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.
ADjUSTMENT OF LIMIT STOPS
The rear derailleur is equipped with limit screws
which limit the swivel range of the rear derailleur,
thus preventing the rear derailleur and chain from
colliding with the spokes or the chain from dropping
off the smallest sprocket. The limit screws do not
change their position during normal use:
If your Canyon topples over, the rear derailleur or
its attachment might get bent. You should therefore
check the swivel range after any incident or when
mounting other wheels onto your Canyon.
Shift the gear lever to the highest gear (smallest
sprocket). The inner cable is then totally relaxed
and the chain will automatically run on the smallest
sprocket. Look from the rear at the rear gear clus-
ter and check, whether the pulleys are perfectly
aligned with the teeth of this sprocket.
CHECK AND READJUSTMENT GEARS 65
BILD
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
Limit screws
Ask a helper to lift the rear wheel. By turn-
i
ing the cranks and shifting through you
can easily check the function.