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Front Derailleur
Shift both shifters to the smallest number indicated and place the
chain on the corresponding cog and chainwheel. Disconnect the front
derailleur cable from the cable anchor bolt. Check the position of the front
derailleur; it should be parallel with the outer chainwheel and clear the
largest chainwheel by 1-3mm when fully engaged.
With the chain on the smallest chainwheel in front and the largest cog
in back, adjust the Low limit screw so the chain is centered in the front
derailleur cage. Reconnect the cable, pull any slack out, and tighten the
anchor bolt securely. Shift the front shifter to the largest chainwheel.
If the chain does not go onto the largest chainwheel, turn the high limit
screw in 1/4 turn increments counter-clockwise until the chain engages
the largest chainwheel. If the chain falls off the largest chainwheel, and
into the pedals, you will need to turn the High limit screw in 1/4 turn
increments clockwise until the chain no longer falls off.
Shift through every gear, using the barrel adjusters to fine tune the
cable tension. The barrel adjuster for the front derailleur is located on
the front shifter where the cable comes out of the shifter. Clockwise will
loosen the cable tension and direct the chain closer to the frame while
counter-clockwise will tighten the cable tension and direct the chain
away from the frame.
Do not ride a bicycle that is not
shifting properly. Overlooking proper
adjustments may cause irreparable
damage to the bicycle and/or
bodily injury. Never move the shifter
while pedaling backward, nor pedal
backwards after having moved the
shifter. This could jam the chain and
cause serious damage to the bicycle
and/or rider.
Low Adjusting Screw
Cable Anchor Bolt
Derailleur Cage
High Adjusting
Screw
Chainguide
clearance of
1-3mm
!
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,
loosen 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. Re-tighten 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 barrel
adjuster to fine tune the cable tension 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.
Ensure all bolts are secured tightly and the chain
does not fall off in either direction.
Guide Pulley
Cable Barrel
Adjuster
Adjustment
Screws
Freewheel
Pulley Adjustment
Screw
Tension Pulley
High Gear
Adjustment Screw
Low Gear
Adjustment
Screw
Barrel
Adjuster
Rear Derailleur Side View
H
L
!
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.
DERAILLEUR SYSTEMS
The derailleur system includes the font and rear derailleurs, the shift
levers, and the derailleur control cables, all of which must function
correctly for smooth gear shifting to occur.