User Guide

32
TWIST SHIFTERS
Inspection
Once a month, check the shift cables for kinks, rust, broken strands, or frayed ends.
Check the housing for bent ends, cuts, and wear. If you suspect a problem with your
shift cables, do not ride your bicycle. Replace the cable and/or housing before riding by
following these instructions, or take your bicycle to your Fisher dealer for service.
Once a month, check the operation of the left shifter/front derailleur. When the top of
the left shifter is rotated towards you (while on the bike), the front derailleur should shift
the chain from a smaller to a larger chainring. When the top of the left shifter is pushed
away, the derailleur should shift the chain from a larger to a smaller chainring. After the
shift, by moving the shifter slightly, you should be able to position the front derailleur
such that it does not rub on the chain. The chain should not fall off the inner or outer
chainrings at any time.
Once a month, check the operation of the right shifter/rear derailleur. When the top of
the right shifter is rotated towards you, the rear derailleur should shift the chain from a
smaller to a larger cog. When the top of the shifter is pushed away, the derailleur should
shift the chain from a larger to a smaller cog. After the shift, the rear derailleur should
be positioned such that it does not rub on the chain. The chain should not fall off the
inner or outer cogs at any time.
Adjustment
Left Shifter/Front derailleur
To make the low gear adjustment on the front derailleur, first shift the chain onto the
smallest front chainring and the largest cassette cog. Loosen the derailleur cable clamp
bolt until the cable is free. Turn the low gear adjusting screw (usually marked “L”) until the
inner chain guide of the derailleur is approximately 0.5 mm from the chain. While pulling
on the front derailleur cable, rotate the top of the left shifter away to ensure that the
shifter is in the small chainring position. Screw the adjusting barrel on the left shifter
to its most clockwise position. Pull the front derailleur cable taut, insert the cable in the
groove found above the derailleur cable clamp bolt, and tighten the cable clamp bolt
to 32-52 lb•in (3.6-5.9 Nm). To make the high gear adjustment on the front derailleur,
shift the rear derailleur to the smallest cog. Next, turn the high gear adjusting screw
(usually marked “H”) counter-clockwise until it cannot interfere with the motion of the
derailleur.
While pedaling the bicycle with your hand, carefully shift onto the outside chainring.
Position the front derailleur with the shifter so that the outer chain guide is approximately
0.5 mm from the chain. Re-tighten the high gear adjusting screw until it meets resistance.
If you have turned it too far, the derailleur will move toward the smaller chainring. To adjust
the middle position of the front shifter, shift the chain onto the middle front chainring and
the largest rear cog. Use the barrel adjuster on the front shifter to position the inner chain
guide of the front derailleur approximately 0.5 mm from the chain. Go through the various
gear combinations. Make sure the chain does not fall off when you shift and that the front
derailleur does not rub on any part of the crankset.
Adjustment
Right Shift lever/Rear derailleur
To make the high gear adjustment on the rear derailleur, shift the chain onto the
smallest rear cog and the largest front chainring, then loosen the rear derailleur cable
clamp bolt until the cable is free. Stand behind the bicycle to see that the smallest rear
cog, the chain, and the two derailleur pulleys are in line.
If they are not aligned, turn the high gear adjusting screw (usually marked “H”) until
this line is established. While pulling on the rear derailleur cable, push the top of the right
shifter away from you as far as it will go. Screw the adjusting barrel on the right shifter to
it’s most clockwise position. Screw the adjusting barrel on the rear derailleur to it’s most
clockwise position, and then rotate it one turn counter-clockwise. Pull the shift cable taut,
insert the cable into it’s groove on the rear derailleur, and tighten the clamp bolt to 32-52