Bedienungsanleitung Winora Algemene (Seite 53 von 140) (Englisch)

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6.3 Checking and Readjusting Derailleur

Gears

The derailleur gears of your bicycle were carefully adjusted by your dealer

before delivery. However, Bowden cables may stretch a little on the first

kilometres/miles, making gear shifting imprecise.

Adjusting the front and rear derailleur accurately is a job for an experienced

mechanic.

If you want to try adjusting it yourself, be sure to read the operating instruc-

tions of the manufacturer. In case you have any problems with the gears,

please contact your bicycle dealer!

6.3.1 Rear derailleur

Increase the tension of the Bowden cable by turning the adjustable cable

stop at the shifting lever (a) or the adjusting bolt through which it runs into

the rear derailleur of mountain, city, kids’ and trekking bicycles (b).

Rear derailleurs are not all equipped with an adjusting bolt!

If you have a road racing bicycle 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.

To do so, shift to the smallest sprocket (c) and turn the clicking bolts anti-

clockwise in half turns until the cable is slightly tensioned.

After tensioning the Bowden cable check whether the chain immediately

climbs onto the next larger sprocket. To find out you either have to turn the

cranks by hand (d) or ride the bicycle and change gears.

If the chain easily climbs onto the next larger sprocket, check whether it just

as easily shifts to the small sprockets. You may need several tries.

Adjusting the front and rear derailleur accurately is a job for an

experienced mechanic. Please observe the instructions of the

gear manufacturer. If you have any problems with the gears,

contact your bicycle dealer.

Ask a helper to lift the rear wheel. By turning the cranks and

shifting through you can easily check the function.

6.3.2 Checking the Limit Stops

The limit screws are adjusted by your bicycle dealer. They do not alter their

position during normal use.

If your bicycle has tipped over or the rear derailleur received

a blow, the rear derailleur or its mount might be bent. It is ad-

visable to check its range of movement and readjust the limit

screws, if necessary, after such an incident or after mounting

new wheels on your bicycle (a).

Shift with the right shifting lever to the highest gear. The inner cable is re-

laxed and the chain running on the smallest sprocket. Look from the rear

of the bicycle at the cassette and check whether the teeth of the smallest

sprocket and the teeth of the guide pulley are all in a perfectly vertical line

(b).

If necessary, correct the position by means of the limit screws. The limit

screws on rear derailleurs are often marked “H” for high gear and “L” for low

gear (c). In this case high gear stands for high transmission ratio, i.e. with the

chain running 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 by counting the number of turns and watch the rear

derailleur. If it does not move, you are turning the wrong one. Turn back the

counted rotations to find its original position.

Turn the screw clockwise to shift the rear derailleur towards the wheel and

anticlockwise to shift it away from the wheel.

Continue by shifting the rear derailleur to the largest sprocket. Make sure the

rear derailleur does not collide with the spokes. When the chain runs on the

largest sprocket see whether you can shift the rear derailleur even further by

moving the shifting lever to the end of its travel. Then press the rear derailleur

further towards the spokes by hand (d). Spin the wheel. If the derailleur cage

moves towards the spokes or if the chain begins to move beyond the largest

sprocket, the derailleur movement range needs to be limited. Turn the limit

screw marked “L” clockwise until the rear derailleur is clear of the spokes.

Be sure to go on a test ride in a place free of traffic, after adjust-

ing the gears of your bicycle.

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!

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