Operation Manual

Chapter 3: Adjustment 20
Front Derailleur
With bicycles that have more than one chainring,
the front derailleur makes the gear changes.
To adjust the small-chainring position
1. Move the chain to the smallest front chainring
and the largest rear cog.
2. Decrease the tightness of the cable-clamp
bolt (Figure 22) until the cable is free.
3. Turn the low-gear limit-screw (identified
with an “L”) until the inner chain-guide
of the derailleur is approximately 0.5 mm
from the chain.
4. Pull on the cable end, and move the left shift-
lever to the small-chainring position.
5. On the shift-lever or the down tube of the
frame, fully turn clockwise the derailleur-
cable barrel-adjuster.
6. Put the cable in the groove found near the
derailleur-cable-clamp bolt, pull the cable
tight, and tighten the clamp bolt to
44-60 lb•in (5.0-6.8 N•m).
To adjust the large-chainring position
1. Move the rear derailleur to the smallest rear cog.
2. Turn the high-gear limit-screw (identified
with an “H”) counterclockwise until it can
not stop the movement of the derailleur.
3. Turn the crankarms with your hand. Use the
shift-lever to carefully move the chain to the
outside chainring.
4. Move the outer chain-guide approximately
0.5 mm from the chain.
5. Tighten the high-gear limit-screw until it resists.
• If you have turned the screw too far, the front
derailleur will move to the small chainring.
6. Change gears to all the gear combinations. Make
sure the chain does not come off when you
move the shift-lever. Make sure the derailleur
cage does not rub on part of the crankarms.
To adjust the middle-gear position with three
chainrings
1. Move the chain to the largest front chainring
and the smallest rear cog.
2. Turn the cable barrel-adjuster (on the down
tube, or on the lever) to change the cable
tension and align the inner cage of the
derailleur until it touches the chain.
3. Change gears to all the gear combinations to
make sure the chain smoothly lines up with
all the chainrings.
Some front shift-levers have a ‘tab.’ Slightly
move the lever to a lower gear and the
derailleur will move in slightly so it does not
touch the chain.
FIGURE 20:
Lever-clamp bolt, road
lever
1. Lever-clamp bolt
1
FIGURE 21:
Lever-clamp bolt,
mountain lever
1. Lever-clamp bolt
2. Reach-adjustment
screw
3. Barrel-adjuster
4. Cable
1
2
3
4
FIGURE 22:
Front derailleur
1. Cable
2. Limit-screws
3. Cable-clamp bolt
1
2
3