MARIN Owner's Manual page 31

SHIMANO SHIFT LEVERS
The right lever shifter controls chain movement on the rear cluster. It
consists of two different levers. Push the larger lever (the lever that is
closest to you) forward with your thumb in order to move the chain
from the smaller cogs (higher gear) to larger cogs (lower gears). Pulling
the small, "trigger-like" lever with your fore-finger accomplishes the
opposite; it moves the chain from the bigger to the smaller cogs.
RIGHT AND LEFT SHIFT LEVERS
LEFT SHIFTER
Trigger Lever--
Lower Gear
Derailleur Cable
Larger Lever- Adjusting Barrel
Higher Gear
The left lever controls chain movement on the three front chain rings.
Pushing the larger lever that is closer to you forward moves the chain
from the smaller (lower gear) chain ring to the larger. Pulling the small-
er, "trigger-like" lever with your fore-finger will move the chain from
large to small rings.
Shimano XTR and Nexave shifters found on some models use the same
push & pull "trigger-like" system as above, except shifting has the
opposite effect. Pushing on the larger lever moves to a smaller cog and
pulling on the smaller trigger lever moves the chain from the smaller
to the bigger cogs.
RIGHT SHIFTER
Trigger Lever--
Higher Gear
Larger Lever-Lower Gear
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GRIP SHIFT SHIFTER
Handle Bar
Derailleur Cable
Adjusting Barrel
Shifting Mechanism
GRIP SHIFT OR SHIMANO REVO SHIFTERS:
The Grip Shift and Shimano Revo shifters found on some Marin bicy-
cles operate differently than the trigger shifters described earlier. The
right shifter still controls the rear derailleur. Twisting the control
towards you shifts to an easier gear (larger rear cog). Twisting the con-
trol away from you shifts to a harder gear (smaller rear cog).
Similarly, the left shifter controls the front derailleur. By twisting
towards you, the chain shifts to a harder gear (larger chain ring).
Twisting the control away from you shifts to an easier gear (smaller
chain ring).
REAR DERAILLEUR
First shift your bicycle so the chain is in the smallest rear cog. Stand
to the rear of the bicycle and make sure that the small cog, the two
derailleur pulleys and chain are all in line. If they are not, the rear
derailleur or your frame's derailleur mounting tab may need adjust-
ment/alignment.
You can take up minor slack in the shifting cables by using the adjust-
ment barrel on the shift lever. Turn the adjustment barrel on the shift
lever or at rear derailleur counter clockwise as necessary. If this is not
enough, you can adjust cable length where the cable bolt clamps.
Gear Indicator
Hand Grip
Brake Lever