Adjustment Of Limit Stops; Drop-Out - Canyon road bike Manual

62 GEARS CHECKING AND READJUSTING

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.
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!
If the pulley cage touches the spokes or if the chain
begins to move beyond the largest sprocket, you
should reduce the swivel range. Turn the screw
marked "L", until you are absolutely sure the rear
derailleur does not collide with the spokes.
Check the position of the pulley cage towards the
sprocket. The gap between pulley and the largest
sprocket should leave a clearance of one to two
links at least.
The rear derailleur is equipped with a bolt located
at the drop-out front which serves the purpose of
adjusting this clearance. Screw in this bolt until the
clearance is as desired. Turn the cranks backwards
for checking purposes. The pulley should not touch
the sprocket during this movement, as well.
In case the clearance still does not suffice, chang-
ing gears being thus impeded, you have to shorten
the chain by one link. This means an increased
tension on the rear derailleur. It must, however, be
ensured that the chain can run on the largest chain-
ring as well as on the largest sprocket. Due to the
extremely oblique run of the chain, this gear should
however be avoided.
CHECKING AND READJUSTING GEARS 63
To adjust the clearance between pulley cage and sprocket, turn the
bolt located at the front side of the drop-out
Ask a helper to lift the rear wheel. By turn-
i
ing the cranks and shifting through you
can easily check the function.
Be sure to go on a test ride in a place free
of traffic, after adjusting the gears of your
bicycle.