Checking And Readjusting The Gears; Rear Derailleur; Adjustment Of Limit Stops - Canyon ROAD BIKE Manual

78 GEARS CHECKING AND READJUSTING

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 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.
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.
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.

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.
If this is not the case, you have to adjust the posi-
tion by means of the limit screw. The limit screws on
rear derailleurs are often marked "H" for high gear
and "L" for low gear. In this case high gear stands
for high transmission ratio, i.e. with the chain run-
ning on the smallest sprocket.
If the screws are not marked, you will have to find
out by trial and error. Turn one of the screws count-
ing the number of turns and watch the rear derail-
leur. If it does not move, turn the bolt back to its
original position.
Turn the screw clockwise to shift the rear derailleur
towards the wheel and anticlockwise to shift it away
from the wheel.
Change gears to the biggest sprocket. Be careful as
you do so, as not to let the rear derailleur collide
with the spokes. When the chain runs on the big-
gest sprocket, see whether you can take the rear
derailleur even further by moving the shift lever to
the end of its travel. Then press the rear derailleur
further towards the spokes by hand. Spin the wheel.
CHECKING AND READJUSTING GEARS 79
Reduce the swivel range of the rear derailleur with the limit screws
Check whether the rear derailleur remains clear of the spokes
Limit screws
Improperly adjusted limit stops or a bent
rear derailleur mount can result in a severe
damage to the bicycle and a rear wheel blocking.
Risk of an accident!