42
DERAILLEUR
Although the front and rear derailleurs are initially adjusted at the factory, you will
need to inspect and readjust both before riding the bicycle.
Rear Derailleur
Begin by shifting the rear shifter to largest number indicated, disconnect the cable from
the rear derailleur cable anchor bolt and place the chain on the smallest sprocket.
Adjust the High limit screw so the guide pulley and the smallest sprocket are lined up
vertically. Reconnect the cable, pull out any slack, and retighten the anchor bolt
securely. Shift through the gears, making sure each gear achieved is done quietly and
without hesitation. If necessary, use the adjustment barrel to fine tune each gear by
turning it the direction you want the chain to go. For example, turning clockwise will
loosen the cable tension and move the chain away from the wheel, while turning
counter-clockwise will tighten cable tension and direct the chain towards the wheel.
Shift the rear shifter to the gear one and place the chain on the largest cog. Adjust the
Low limit screw in quarter turn increments until the guide pulley and the largest cog
are aligned vertically. Again, shift through each gear several times, checking that each
gear is achieved smoothly. It may take several attempts before the rear derailleur and
cable is adjusted properly (Fig. 3.42, 3.43).
Ensure all bolts are secured tightly and the chain does not fall off in
either direction.
ASSEMBL
Y
Freewheel
Outer side of top gear
Pulley
adjustment
screw
Adjustment
screws
SIS cable
adjuster
Tension
Pulley
Guide
Pulley
3.42
High gear
adjustment
screw
Low gear
adjustment
screw
Barrel
adjuster
3.42
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