Shimano M770 XT Hollowtech II Crankset User Manual
User Manual: Shimano M770 XT Hollowtech II Crankset User Manual
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DEORE XT Front Chainwheel
FC-M770
2
1
3
7
6
8
3
5
4
9
10
10
8
8
11
13
12
14
15
5
ITEM
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
* 14
15
16
SHIMANO
CODE NO.
Y-1F8 11100
Y-1J1 98030
Y-1J1 98040
Y-1J1 98050
Y-1J1 98060
Y-1G3 98010
Y-1FU 98120
Y-1F3 16000
Y-1J1 98070
Y-1J1 98080
Y-1F8 13000
Y-1E5 98210
Y-1TF 21000
Y-1J1 98090
Y-1J1 98100
Y-1J1 98110
Y-1J1 22000
Y-1J1 98020
Y-1J1 98010
DESCRIPTION
Crank Arm Fixing Bolt
Left Hand Crank Arm 165 mm
Left Hand Crank Arm 170 mm
Left Hand Crank Arm 175 mm
Left Hand Crank Arm 180 mm
Clamp Bolt (M6 x 19) & Washer
Plate
Ring
Adapter Unit
Left Hand Adapter (B.C.1.37" x 24T) English Thread
Spacer (2.5 mm)
Inner Cover & O-Ring
O-Ring
Right Hand Adapter (B.C.1.37" x 24T) English Thread
Double Gear Fixing Bolt (M8 x 9.1) & Nut (4 sets)
Inner Gear Fixing Bolt (M8 x 8.5 / 4 pcs.)
Chainring 22T
Chainring 32T
Chainring 44T
A: Same parts.
B: Parts are usable, but differ in materirals, appearance, finish, size, etc.
Absence of mark indicates non-interchangeability.
1
0
76
76
-M
FC
-M
-M
FC
Bolt circle diameter: 104 mm...(For outer gear and middle gear), 64 mm...(For inner gear)
FC
97
0
16
INTERCHANGEABILITY
A
B
B
A
B
B
A
B
B
A
B
B
A
B
B
A
B
B
A
A
A
A
A
A
B
B
B
B
B
B
A
A
A
A
A
A
A
A
A
B
B
B
B
B
B
0706-2693
SI-1J10A-002-00
General Safety Information
WARNING
• The two left crank arm mounting bolts should be tightened alternately in stages rather
than each bolt being fully tightened all at once. Use a torque wrench to check that the
final tightening torques are within the range of 12 - 14 N·m.
Furthermore, after riding approximately 100 km (60 miles), use a torque wrench to recheck the tightening torques.
It is also important to periodically check the tightening torques.
If the tightening torques are too weak or if the mounting bolts are not tightened
alternately in stages, the left crank arm may come off and the bicycle may fall over.
• Before riding, you should carefully check your crankset to make sure that there are no
cracks, and if you find any sign of a crack or any other unusual condition, do NOT use
the bicycle.
• Be careful not to let the cuffs of your clothes get caught in the chain while riding,
otherwise you may fall off the bicycle.
• Check that the tension of the chain is correct and that the chain is not damaged. If the
tension is too weak or the chain is damaged, the chain should be replaced. If this is
not done, the chain may break cause serious injury.
• If the inner cover is not installed correctly, the axle may rust and become damaged,
and the bicycle may fall over and serious injury may occur as a result.
• Obtain and read the service instructions carefully prior to installing the parts.
Loose, worn or damaged parts may cause the bicycle to fall over and serious injury
may occur as a result. We strongly recommend only using genuine Shimano
replacement parts.
• Obtain and read the service instructions carefully prior to installing the parts. If
adjustments are not carried out correctly, the chain may come off and this may cause
you to fall off the bicycle which could result in serious injury.
• Read these Technical Service Instructions carefully, and keep them in a safe place for
later reference.
Note
• Make sure that the chainring combination matches the front chainwheel tooth
configuration in the Product specifications table. If other combinations are used, the
distance between the chainrings will be incorrect and the chain might slip off and get
caught in between them.
• When the chain is in the position shown in the
Front
illustration, the chain may contact the front
chainrings
chainrings or front derailleur and generate
noise. If the noise is a problem, shift the chain
onto the next-larger rear sprocket or the one
Rear
after.
sprockets
• If the bottom bracket shell is not parallel, gear
shifting performance will drop.
• Before riding the bicycle, check that there is no play or looseness in the connection.
Also, be sure to retighten the crank arms and pedals at periodic intervals.
• If a squeaking noise is heard coming from the bottom bracket axle and the left crank
arm connector, apply grease to the connector and then tighten it to the specified
torque.
• If you feel any looseness in the bearings, the bottom bracket should be replaced.
• In addition, if pedaling performance does not feel normal, check this once more.
• Do not wash the bottom bracket with high-pressure jets of water.
• Apply grease to the left and right adapters before installing them.
• To ensure the best performance, be sure to use only the specified type of chain. The
wide type of chain cannot be used.
• If the chain keeps coming off the chainrings during use, replace the chainrings and the
chain.
• You should periodically wash the chainrings in a neutral detergent and then lubricate
them again. In addition, cleaning the chain with neutral detergent and lubricating it can
be an effective way of extending the useful life of the chainrings and the chain.
• Parts are not guaranteed against natural wear or deterioration resulting from normal
use.
• For maximum performance we highly recommend Shimano lubricants and
maintenance products.
• For any questions regarding methods of installation, adjustment, maintenance or
operation, please contact a professional bicycle dealer.
Technical Service Instructions
FC-M770 / FC-M771-K
■ Spacer installation method
Specifications
1 Check whether the width of the bottom bracket shell
Model number
FC-M770
FC-M771-K
Chainwheel tooth combination
44-32-22T
48-36-26T
104 mm / 64 mm
104 mm / 64 mm
Bolt circle diameter
Crank arm length
is 68 mm or 73 mm.
2 Next, install the adapter while referring to the
Spacer
165 mm, 170 mm, 175 mm, 180 mm 165 mm, 170 mm, 175 mm, 180 mm
Chain line
50 mm
50 mm
68, 73 mm
68, 73 mm
BC1.37 (68, 73 mm)
BC1.37 (68, 73 mm)
Bottom bracket shell width
Thread dimensions
68mm
73mm
illustrations below.
< FC-M770 >
F
A
F
B
F
C
2.5 mm
1.8 mm
0.7 mm
Band Type
68 mm
73 mm
Be sure to read the service instructions for the Front Drive System in conjunction with these
service instructions.
Installation of the Front Chainwheel
F
A
■ Follow the procedure in the figure.
F
A
F
A
Bracket Type
1, 2 Use the special tool TL-FC32/36 to install the right adapter (counterclockwise thread) and the left
68 mm
adapter (clockwise thread).
Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.}
3
4
5
Insert the right crank unit.
6
Push in the stopper plate and check that the plate pin is securely in place, and then tighten the bolt
of the left crank arm. (5 mm Allen key)
Note : Each of the bolts should be evenly and equally tightened to 12 - 14 N·m {106 - 122 in. lbs.}.
Set section A of the left crank into the axle of the right crank unit where the groove is wide.
F
A
BB mount-type
bracket
F
A
Use the TL-FC16/18 to tighten the cap.
Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.}
73 mm
F
A
< FC-M771-K >
Band Type
68 mm
F
B
F
C
73 mm
(A)
TL-FC32
4
F
A
68 mm
1
5
F
A
F
A
Chaincase Stay Type
Wide groove
area
Chaincase stay
F
A
73 mm
F
C F
A
F
C
Bracket Type
68 mm
TL-FC16
6
2
F
A
F
A
Inner cover
73 mm
F
A
For bracket type
3
Bottom bracket shell
BB mount-type
bracket
Front Derailleur
Install as shown in the
illustration.
Front Chainwheel
Plate pin
Bolt
Note :
Set the stopper plate in
the right direction as
shown in illustration.
Stopper plate
Push up
Adapter
Adapter
Tightening torque :
35 - 50 N·m {305 - 435 in. lbs.}
SI-1J10A-002
Apply grease to the left
and right adapters
before installing them.
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan
* Service Instructions in further languages are available at : http://techdocs.shimano.com
These service instructions are printed on recycled paper.
Please note: specifications are subject to change for improvement without notice. (English) © May 2009 by Shimano Inc. XBC SZK Printed in Japan.
SI-6MPFA-003-00
General Safety Information
Specifications
Front Derailleur
WARNING
• Use neutral detergent to clean the chain. Do not use alkali-based or acid based detergent such as rust cleaners as it may result
in damage and/or failure of the chain.
• Use the reinforced connecting pin only for connecting the narrow type of chain.
• There are two different types of reinforced connecting pins available. Be sure to check the table below before selecting which
pin to use.
Reinforced
If connecting pins other than reinforced connecting pins
Chain
Chain tool
connecting pin
are used, or if a reinforced connecting pin or tool which
is not suitable for the type of chain is used, sufficient
9-speed super narrow
Silver
connection force may not be obtained, which could
chain such as
TL-CN32 / TL-CN27
6.5mm
CN-7701 / CN-HG93
cause the chain to break or fall off.
8- / 7- / 6-speed narrow
• If it is necessary to adjust the length of the chain due
Black
chain such as
TL-CN32 / TL-CN27
to a change in the number of sprocket teeth, make the
7.1mm
CN-HG50 / CN-HG40
cut at some other place than the place where the chain
has been joined using a reinforced connecting pin or an end pin. The chain will be damaged if it
Reinforced Connecting Pin
is cut at a place where it has been joined with a reinforced connecting pin or an end pin.
• Be careful not to let the cuffs of your clothes get caught in the chain while riding, otherwise you
may fall off the bicycle.
• Check that the tension of the chain is correct and that the chain is not damaged. If the tension
End Pin
Link Pin
is too weak or the chain is damaged, the chain should be replaced. If this is not done, the chain
may break and cause serious injury.
• Use a front chainwheel which is compatible with 9-speed chains in conjunction with Shimano CN-7701,
CN-HG93 and CN-HG73 chains. If a chainwheel for an 8-speed chain or less is used, front chainwheel gear shifting problems
may occur, or the chain pins might fall out, causing the chain to break.
• The two left crank arm mounting bolts should be tightened alternately in stages rather than each bolt being fully tightened all at
once. Use a torque wrench to check that the final tightening torques are within the range of 12 - 14 N·m.
Furthermore, after riding approximately 100 km (60 miles), use a torque wrench to re-check the tightening torques.
It is also important to periodically check the tightening torques.
If the tightening torques are too weak or if the mounting bolts are not tightened alternately in stages, the left crank arm may
come off and the bicycle may fall over, and serious injury may occur as a result.
• Check that there are no cracks in the crank arms before riding the bicycle. If there are any cracks, the crank arm may break and
you may fall off the bicycle.
• If the inner cover is not installed correctly, the axle may rust and become damaged, and the bicycle may fall over and serious
injury may occur as a result.
• Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or damaged parts may cause the
bicycle to fall over and serious injury may occur as a result. We strongly recommend only using genuine Shimano replacement
parts.
• Obtain and read the service instructions carefully prior to installing the parts. If adjustments are not carried out correctly, the
chain may come off and this may cause you to fall off the bicycle which could result in serious injury.
• Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.
Note
• In addition, if pedaling performance does not feel normal, check this once more.
• Before riding the bicycle, check that there is no play or looseness in the connection. Also, be sure to retighten the crank arms
and pedals at periodic intervals.
• If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connector, apply grease to the connector and
then tighten it to the specified torque.
• Do not wash the bottom bracket with high-pressure jets of water.
• If you feel any looseness in the bearings, the bottom bracket should be replaced.
• If gear shifting operations do not feel smooth, wash the derailleur and lubricate all moving parts.
• If the amount of looseness in the links is so great that adjustment is not possible, you should replace the derailleur.
• You should periodically wash the chainrings in a neutral detergent and then lubricate them again. In addition, cleaning the chain
with neutral detergent and lubricating it can be an effective way of extending the useful life of the chainrings and the chain.
• If the chain keeps coming off the chainrings during use, replace the chainrings and the
chain.
Front
• When the chain is in the position shown in the illustration, the chain may contact the front
chainrings
chainrings or front derailleur and generate noise. If the noise is a problem, shift the chain
onto the next-larger rear sprocket or the one after.
• Apply grease to the left and right adapters before installing them.
Rear
• For smooth operation, use the specified outer casing and the bottom bracket cable guide.
sprockets
• This front derailleur is for triple front chainwheel use only. It cannot be used with the
double front chainwheel, as the shifting points do not match.
• When installing the top route type, choose a frame that has three outer casing holders as shown in the
Outer casing holders
illustration at right.
• Use an outer casing which still has some length to spare even when the handlebars are turned all the way
to both sides. Furthermore, check that the shifting lever does not touch the bicycle frame when the
handlebars are turned all the way.
• A special grease is used for the gear shifting cable (SIS-SP41). Do not use DURA-ACE grease or other
types of grease, otherwise they may cause deterioration in gear shifting performance.
• Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly.
• Operation of the levers related to gear shifting should be made only when the front chainwheel is turning.
• If the brake fluid used in the oil disc brakes is of a type which tends to adhere to the plastic parts of the shifting lever, this may
cause the plastic parts to crack or become discolored. Therefore, you should make sure that the brake fluid does not adhere to
these plastic parts.
The mineral oil which is used in SHIMANO disc brakes does not cause cracking or discoloration if it adheres to plastic parts, but
such parts should be cleaned with alcohol beforehand to prevent foreign particles from adhering.
• Do not disassemble the indicator and shifting lever unit, as this may damage them or cause mis-operation.
• Parts are not guaranteed against natural wear or deterioration resulting from normal use.
• For maximum performance we highly recommend Shimano lubricants and maintenance products
• For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional
bicycle dealer.
X = Available
Model number
FD-M770-E FD-M770
Normal type
X
Top route type
SI-6MPFA-003
Front Drive System
FD-M772 / M772A
FD-M773
X
X
X
X
X
X
Front chainwheel tooth difference
22T
22T
22T
22T
Min. difference between top and intermediate
12T
12T
12T
12T
–
S, M, L
S, M, L
S, M, L
Chainstay angle (a)
66° - 69°
66° - 69°
66° - 69°
63° - 66°
Applicable chain line
50 mm
50 mm
50 mm
50 mm
44T
44T / 48T
44T
44T / 48T
Front derailleur installation band diameter
Applicable front chainwheel
Installation band diameters:
S (28.6 mm), M (31.8 mm), L (34.9 mm)
When using the S, M size, use an
installation band with a diameter of
28.6 mm, 31.8mm and install it to a
L size adapter.
• FD-M770/ FD-M772/ FD-M772A
When installing the components to carbon frame/handle bar
surfaces, verify with the manufacturer of the carbon frame/parts for
their recommendation on tightening torque in order to prevent over
tightening that can cause damage to the carbon material and/or
under tightening that can cause lack of fixing strength for the
components.
< Normal type >
The level section of the chain guide
outer plate should be directly above
and parallel to the largest chainring.
Secure using a 5 mm Allen key.
FC-M770
FC-M771-K
Chainwheel tooth combination
44-32-22T
48-36-26T
Note:
Pass the cable through as shown
in the illustration.
Bolt circle diameter
Crank arm length
Chain length
104 mm / 64 mm
104 mm / 64 mm
165 mm, 170 mm, 175 mm, 180 mm
165 mm, 170 mm, 175 mm, 180 mm
Chain line
50 mm
50 mm
68, 73 mm
68, 73 mm
BC1.37 (68, 73mm)
BC1.37 (68, 73mm)
Bottom bracket shell width
Thread dimensions
Applicable bottom bracket
FD-M771
Largest sprocket
Wire fixing bolt
Tightening torque :
6 - 7 N·m {52 - 60 in. lbs.}
SM-BB70
Installation of the lever
After taking up the initial slack in the cable, re-secure to the front
derailleur as shown in the illustration.
Use a handlebar grip with a
maximum outer diameter of 36 mm.
Gear shifting operation
This release lever is equipped with a 2-way release mechanism which allows release operations to be carried out by either pushing or pulling
the lever.
Both lever (A) and lever (B) always return to the initial position when they are released after shifting.
When operating one of the levers, always be sure to turn the crank arm at the same time.
To shift from a small chainring to a larger chainring
To shift from a large chainring to a smaller chainring
When lever (A) is pressed once, there is
a shift of one step from a small chainring
to a larger chainring.
When lever (B) is pressed once, there is
a shift of one step from a large
chainring to a smaller chainring.
from intermediate chainring
to largest chainring.
Tightening torque :
2.5 N·m {22 in. lbs.}
Outboard
Lever (A) initial position
Inboard
2-way release
Installation of the Front Chainwheel and Front Derailleur
1, 2 Use the special tool TL-FC32/36 to install the right adapter
3
4
Insert the right crank unit.
Wide groove
area
Set section A of the left crank into the axle of the right crank unit
where the groove is wide.
5
Use the TL-FC16/18 to tighten the cap.
Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.}
6
Push in the stopper plate and check that the plate pin is securely
in place, and then tighten the bolt of the left crank arm. (5 mm
Allen key)
Note : Each of the bolts should be evenly and equally tightened
to 12 - 14 N·m {106 - 122 in. lbs.}.
SIS Adjustment
TL-FC16
6
Pro-Set alignment
block
2
Plate pin
Bracket Type
F
A
F
A
F
A
Band Type
BB mounttype bracket
F
A
68 mm
*1
F
A
73 mm
F
B
F
C
F
A
73 mm
F
A
F
B
F
C
2.5 mm
1.8 mm
0.7 mm
Chaincase Stay Type
68 mm
F
A
*2
Bracket Type
Chaincase stay 68 mm
F
C F
A
73 mm
F
A
F
A
BB mounttype bracket
F
A
SIS-SP41
Front derailleur
Front chainwheel
Chain
Bottom bracket cable guide
F
A
F
A
FD-M770 / FD-M771 / FD-M772 / FD-M773 / FD-M770-E / FD-M772A
FC-M770 / FC-M771-K
CN-HG93
SM-SP17 / SM-BT17
For bracket type
Install as shown in the
illustration.
Front Derailleur
Largest
sprocket
FD-M770/
M772/M772A
Smallest
chainring
A
B
Chain guide
inner plate
Chain
2. Connecting and securing the inner cable
Operate lever (B) two times or
more, and check on the indicator
that the lever is at the lowest
position. Then remove the inner
hole cover and connect the inner
cable.
Lever (B)
Inner cable
Inner hole cover
Cutting the outer casing
When cutting the outer casing, cut the opposite end to the end
with the marking. After cutting the outer
casing, make the end round so that the
inside of the hole has a uniform diameter.
Attach the same outer end cap to the cut end of the outer casing.
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan
* Service Instructions in further languages are available at :
http://techdocs.shimano.com
Please note: specifications are subject to change for improvement without notice. (English)
© Apr. 2009 by Shimano Inc. XBC SZK Printed in Japan.
Adapter
Adapter
Outer end cap
Tightening torque :
35 - 50 N·m {305 - 435 in. lbs.}
Intermediate
chainring
A
B
Chain guide
inner plate
Chain
B
A
Outer casing adjustment barrel
5. Troubleshooting chart
After completion of steps 1 - 4, move the shifting lever to check the
shifting. (This also applies if shifting becomes difficult during use.)
If the chain falls to the crank
side.
Tighten the top adjustment screw
clockwise (about 1/4 turn).
If shifting is difficult from the
intermediate chainring to the
largest chainring.
Loosen the top adjustment screw
counterclockwise
(about 1/8 turn).
If shifting is difficult from the
intermediate chainring to the
smallest chainring.
Loosen the low adjustment screw
counterclockwise
(about 1/4 turn).
Tighten the top adjustment screw
If there is interference between
the chain and the front derailleur clockwise (about 1/8 turn).
inner plate at the largest
chainring.
If the intermediate chainring is
skipped when shifting from the
largest chainring.
Pro-Set gauge
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
Pro-Set alignment block
Gear teeth
should come
within this range
When carrying out adjustment, set the
chain to the largest sprocket, and at the
front, set the chain to the intermediate
chainring. Adjust using the outer casing
adjustment barrel so that the clearance
between the chain guide inner plate and
the chain is 0 - 0.5 mm.
Loosen the top adjustment screw
If there is interference between
the chain and the front derailleur counterclockwise
(about 1/8 turn).
outer plate at the largest
chainring.
Install the inner hole cover by turning it as
shown in the illustration until it stops.
Do not turn it any further than this, otherwise
it may damage the screw thread.
Adjust and then install the front derailleur as shown in the
illustration. Do not remove the Pro-Set alignment block at this time.
Front Chainwheel
Bolt
This service instruction explains how to use
and maintain the Shimano bicycle parts
which have been used on your new bicycle.
For any questions regarding your bicycle or
other matters which are not related to
Shimano parts, please contact the place of
purchase or the bicycle manufacturer.
F
C
If using three 2.5 mm spacers with a band type and a bottom bracket shell having a width of 68 mm, install the three spacers so that there are two on the right and one on the
left.
*2 1.8 mm corresponds to the thickness of the chain case.
4. Adjustment of the intermediate
chainring
Low adjustment
screw
Chain position
73 mm
*1
Chain
B A
Spacer
< FC-M771-K >
68 mm
F
A
Push up
Stopper plate
Top adjustment
screw
FD-M771/M773
Chain guide
outer plate
Largest
sprocket
3
Note :
Set the stopper plate in
the right direction as
shown in illustration.
Largest
chainring
Chain position
FD-M771/M773
Inner cover
(1) Check whether the width of the bottom bracket
shell is 68 mm or 73 mm.
(2) Next, install the adapter while referring to the
illustrations below.
68 mm
1. Low adjustment
First remove the Pro-Set alignment block .
Next, set so that the clearance between the chain guide inner
plate and the chain is 0 - 0.5 mm.
■ Spacer installation method
< FC-M770 >
Be sure to follow the sequence described below.
1
5
FD-M770/M772/M772A
Set so that the clearance
between the chain guide outer
plate and the chain is
0 - 0.5 mm.
3 mm Allen key
• Install the shifting lever in a position where it will not obstruct brake
operation and gear shifting operation.
• Do not use in a combination which causes brake operation to be
obstructed.
4
(counterclockwise thread) and the left adapter (clockwise
thread).
Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.}
3. Top adjustment
Smallest
sprocket
3 mm Allen key
TL-FC32
Pull
Chain position
Lever (B)
Follow the procedure in the figure.
Top route type
Pull
If not using the indicator, this shifting lever can be installed either
on the inside or the outside of the brake lever.
If adjusting the position, remove the indicator, and then be sure
to secure it in the new position with the two fixing bolts.
from largest chainring
to intermediate chainring.
Normal type
Tightening torque :
5 N·m {44 in. lbs.}
4 mm Allen key
Example:
Example:
FD-M773
Largest chainring
Chain
XT
Outer casing
5 mm Allen key
• FD-M771/FD-M773
Add 2 links (with the chain on both
the largest sprocket and the largest
chainring)
In order to realize the best performance, we recommend that the following combination be used.
SL-M770
Wire
fixing bolt
Chain guide
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
Inner hole cover
Rapidfire (Shifting lever)
Note:
Pass the cable
through as shown
in the illustration.
Chainwheel
(largest chainring)
Chainstay angle
Model number
73 mm
Series
< Top route type >
Chainwheel
Band Type
Technical Service Instructions
FD-M771
X
■ Note
Loosen the outer casing
adjustment barrel
counterclockwise (1 or 2 turns).
If there is interference between
Tighten the outer casing
the chain and front derailleur
adjustment barrel clockwise
inner plate when the rear
(1 or 2 turns).
sprocket is shifted to the largest
sprocket when the chainwheel is
at the intermediate chainring
position.
If the chain falls to the bottom
bracket side.
Tighten the low adjustment screw
clockwise (about 1/2 turn).
If the lever is stiff when shifting
from the intermediate chainring
to the largest chainring
Loosen the top adjustment screw
counterclockwise (about 1/4
turn).
■ Refer to the Service Instructions for the Rear Drive
System for details on replacing and installing the
indicator unit.
Source Exif Data:
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