13
5.
Select the smallest rear sprocket, if there is any evidence of chain rub adjust the outer screw
until this just ceases. The lower edge of the outside plate should be positioned approximately
1-3 mm above the largest outside chainring. If a biopace chain set is fitted as indicated on the
chainring the clearance should be measured above the highest point of the ring.
6
. If a chainwheel disk is fitted, make sure there is sufficient clearance between changer cage
and chainwheel disk.
7
. If problems continue to arise, the bicycle should be checked by a professional repairer.
1-3mm
Inside front changer
Chainwheel disk
Adjusting screws
Operating wire
from left hand
gear control
Outside front changer
Outside Chainwheel
Middle Chainwheel
Inner Chainwheel
VIEW FROM SIDE
Outer adjusting screw
sets outer movement limit
Chainwheel disk
Front changer cage
Inner adjusting screw
sets inner movement
limit
Using the adjusting screws set the limit for the
movement of the front changer cage
VIEW FROM ABOVE
STI RAPIDFIRE
STI Rapidfire lever uses two push levers mounted conveniently under the bar in front of the
thumb. Using lever (A) you can shift one gear at a time, or shift down the entire block with a full
stroke push. Using lever (B) you can shift up the sprocket with the same capability.
STI OPERATION
Rear Gear Operation
Right Hand Lever.
Lever (A) —
operated
by your right hand
thumb pressing away
from your body (shifting
from a small sprocket to
a larger sprocket)
2) To shift two gears at a time
from a small sprocket to a larger
sprocket press Iever A twice
Example: from 2nd to 4th
3) To shift three gears at a
time from a small sprocket to
a larger sprocket press lever
A three times
Example: from 2nd to 5th
Lever (B)
- operated by pulling with your your right hand forefinger or pushing with
your thumb depending on model of shifter. (shifting from a large sprocket to a small sprocket)
When lever (B) is pulled once,
there is a one-step shift from a
larger gear to a smaller gear
Example: from 3rd to 2nd
1
2
3
Click
Click
Click
Right hand lever viewed from below
Right hand lever viewed from below
1) To shift one gear at a time
from a small sprocket press
lever A once
Example: from 2nd to 3rd
3 2
4 2
5 2
3 2
Rear gear changer. Right hand lever
Lever B
Lever A
