To adjust the big chainring position
1. Shift the rear derailleur to the smallest rear cog.
2. Turn the high-gear adjusting screw (marked “H”) counter-clockwise
until it cannot interfere with the motion of the derailleur.
3. Hand-turn the cranks, and use the shifter to carefully shift the
chain onto the outside chainring.
4. Position the outer chain guide of the front derailleur approximately
0.5 mm from the chain.
5. Re-tighten the high gear adjusting screw until it meets resistance.
If you have turned the screw too far, the front
derailleur will move toward the small chainring.
6. Go through the various gear combinations. Make sure the chain does
not fall off when you shift, and the derailleur
cage does not rub on any part of the crankset.
To adjust the middle gear position, with three chainrings
1. Shift the chain onto the largest front chainring and the smallest rear cog.
2. Rotate the cable tension barrel-adjuster (on the downtube, or on the lever) counter-clockwise, increasing
cable tension to align the inner derailleur cage until it just touches the chain.
3. Go through the various gear combinations to ensure the chain smoothly lines up with all the chainrings.
Note: some front shifters have a ‘tab’ feature: slightly downshift the lever and the derailleur will move in slightly,
no longer touching the chain.
Cooper
Bicycle Owners Manual 39
Middle Gear Adjustment
A - Cable
B - Adjusting screws
C - Cable Clamp Bolt
C
A
B
MANUAL 20.11.12 2/7/13 00:00 Page 44
