Rear Drive System

Rear Drive System
General Safety Information
Specifications
Chain length on bicycles
with rear suspension
Rear Derailleur
WARNING
• The ST-M966/ST-M961/ST-M965 / ST-M960 DUAL CONTROL lever is used for both gear shifting and braking operations.
Make sure that you fully understand and are accustomed to the gear shifting and braking operations for your bicycle. Refer to
the illustration for the method of operation.
• Braking can only be performed with the DUAL CONTROL lever. If you use the gear shifting release lever (Auxiliary release
lever) for braking, the release lever may become damaged and you may lose control of the bicycle, which could result in an
accident.
• If the internal unit of the DUAL CONTROL lever becomes damaged, the lever will move down from the normal lever position,
and it may move to a position where braking is difficult to carry out. If this happens, you should stop riding the bicycle
immediately.
• Check that the wheels are fastened securely before riding the bicycle. If the wheels are loose in any way, they may come off the
bicycle and serious injury may result.
• 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
Reinforced
pins available. Be sure to check the table before
Chain
Chain tool
connecting pin
selecting which pin to use. If connecting pins other
9-speed super narrow
than reinforced connecting pins are used, or if a
chain such as
TL-CN32 / TL-CN23
Silver
reinforced connecting pin or tool which is not suitable
6.5mm
CN-7701 / CN-HG93
for the type of chain is used, sufficient connection force
8/
7/
6-speed
narrow
may not be obtained, which could cause the chain to
TL-CN32 / TL-CN23
chain such as
Black
break or fall off.
7.1mm
CN-HG50 / CN-IG51
• If it is necessary to adjust the length of the chain due
Reinforced
to a change in the number of sprocket teeth, make the cut at some other place than
End Pin
Link Pin
Connecting Pin
the place where the chain has been joined using a reinforced connecting pin or an
end pin. The chain will be damaged if it is cut at a place where it has been joined
with a reinforced connecting pin or an end pin.
• 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 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.
• Obtain and read the service instructions carefully prior to installing the parts. Loose, worn, or damaged parts may cause injury
to the rider.
We strongly recommend only using genuine Shimano replacement parts.
• Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.
Model number
The length of A will vary depending on the movement of the rear
suspension. Because of this, an excessive load may be placed on
the drive system if the chain length is too short. Set the length of
the chain by adding two links to the chain when the rear suspension
is at a position where dimension "A" is longest and the chain is on
the largest sprocket and the largest chainring. If the amount of
movement of the rear suspension is large, the slack in the chain
may not be taken up properly when the chain is on the smallest
chainring and smallest sprocket.
RD-M960
Type
SGS
GS
9
Gears
Total capacity
43T
33T
Largest sprocket
34T
34T
Smallest sprocket
11T
11T
Front chainwheel tooth difference
22T
22T
Cassette sprocket tooth combination
Model number
CS-M960
Chain
Largest
sprocket
Freehub
Tooth combination
Gears
Group name
Cutting the outer casing
Model number
Largest
chainring
ag - 18T
9
11, 12, 14, 16, 18, 21, 24, 28, 32T
Gears
as
9
11, 13, 15, 17, 20, 23, 26, 30, 34T
No. of spoke holes
ap
9
12, 14, 16, 18, 20, 23, 26, 30, 34T
9
These Service Instructions describe the operation method when using the ST-M966/M961/M965/M960 DUAL CONTROL lever in
combination with the RD-M960 reverse spring-type rear derailleur. If using in combination with the RD-M952 top normal-type derailleur,
the operations will be reversed.
A
Operating the levers
■ Gear shifting operation
Installation of the lever
The lever always returns to the initial position when it is released
after shifting. When operating the lever, always be sure to turn the
crank arm at the same time.
Use a handlebar grip with a
maximum outer diameter of 32 mm.
To shift from a large sprocket to a smaller sprocket
To shift one step only, press lever to the (1) position. To shift two
steps at one time, press to the (2) position. A maximum two-step
shift can be made in this manner.
Lever initial position
In the case of carbon handlebars, it
may be necessary to lower the
tightening torque in order to prevent
4 mm Allen key
damage to the handlebar.
Please consult the bicycle or handlebar manufacturer regarding the
appropriate level of tightening torque for carbon handlebars.
5. SIS Adjustment
Push lever while turning the crank arm to move the derailleur to
the largest sprocket. Then operate lever once to move the
derailleur to the 2nd-gear sprocket. After this, operate lever just
as far as the extent of play, and then turn the crank arm.
Installation of the chain
It is recommended that you adjust the grip widths of the levers to
the most comfortable widths for gear shifting and braking.
Install the chain with the Pro-Set
alignment block still attached.
After installing, remove the Pro-Set
alignment block.
1st joint
To shift from a small sprocket to a larger sprocket
Approx.
2 mm
Press lever once to shift one step from a smaller to a larger
sprocket.
Turn the crank arm to set the
derailleur to the low position.
When changing
to 3rd
Becomes
narrower
Becomes
narrower
Adjustment bolt
Turn the low adjustment screw
so that the guide pulley moves
to a position directly in line with
the largest sprocket.
Lever initial position
Becomes
wider
1
Guide pulley
2
2
Low adjustment
screw
1
SH
IM
ST-M966 / M965
When installing, be careful not to let the B-tension adjustment screw
come into contact with the dropout tab, otherwise deformation may result.
Do not remove the Pro-Set alignment block at this time.
5 mm Allen key
B-tension
adjustment screw
Bracket spindle Tightening torque :
8 - 10 N·m {70 - 86 in. lbs.}
Turn the crank arm while
pulling the derailleur with your
hand to move the derailleur to
the top position, and then turn
the top adjustment screw to
adjust so that the guide pulley
is in line with the outer line of
the smallest sprocket when
looking from the rear.
Turn the crank arm to set the
derailleur to the low position.
23
2
1
Guide pulley
2
Top adjustment
screw
ar
aQ
12T
ap
ba
Cover
ap
14T
16T
Sprocket spacers
Lock ring spacer
(as)
O
AN
HYPERGL I DE - C
34T
Tightening torque:
30 - 50 N·m {261 - 434 in. lbs.}
30T
17T
23T 20T
26T
Note: Do not attempt to
disassemble the
freewheel body, because it
may result in a malfunction.
Lever
Connect the inner cable to
the derailleur as shown in
the illustration.
• To replace the sprockets, use the
special tool (TL-LR15) and TL-SR20
to remove the lock ring.
Install the TL-SR20 to the largest
sprocket.
CS
-M
96
au
au
AN
JA P
as
as
au
Groove
0
11T
asap
ap ap
as as as
ap
as
Lock ring spacer
(ap)
Freewheel body fixing bolt
Disassembly
Assembly
10 mm Allen key
(TL-WR37)
Tightening torque :
35 - 50 N·m {305 - 434 in. lbs.}
Note: Be sure that the cable is
securely in the groove.
P ER G L I D E
HY
11T
as
T
Wide part
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.
These service instructions are
printed on recycled paper.
Lock ring
34T
SGS / GS
• For installation of the sprockets, use
the special tool (TL-LR15) to tighten
the lock ring.
Lock ring
13T
15
Freewheel body
CS
AN
JA P
ba
ar
ba
aQ
ar
ar
P ER G L I D E
HY
aQ
9S
aQ
T
11T
T
18
11
ba
0
ba
96
ap
-M
ba
The groove is
wide at one
place only.
ac -14T
Replacement of the freewheel body
After removing the hub axle,
remove the freewheel
body fixing bolt (inside
the freewheel body),
and then replace the
freewheel body.
ba
ba
The best setting is when the cable adjustment bolt is tightened
(turned clockwise) until noise occurs without lever being
operated, and then loosened (turned counterclockwise) 90 - 180
degrees from that point.
For the best SIS performance, periodically lubricate all
power-transmission parts.
Inner cable
Lock ring
ba
* Turn the adjustment bolt together with
the outer casing adjustment barrel
cover.
Operate lever to change gears, and check that no noise occurs
in any of the gear positions.
Operate the lever eight times or more to
set the lever to the lowest position. Then
remove the cover and connect the inner
cable.
(ba)
Turn the cable adjustment bolt
counterclockwise to loosen it until
the chain touches a sprocket and
generates noise.
Best setting
Dropout tab
For each sprocket, the
surface that has the group
mark should face outward
and be positioned so that
the wider part of each
sprocket and the A part
(where the groove width is
wide) of the freewheel
body are aligned.
Turn the cable adjustment bolt
clockwise to tighten it until the
chain returns to the 2nd sprocket.
Outer line of
smallest sprocket
1
21T
24T
32T28T
Type
Adjustment bolt
2. Top adjustment
ST-M961 / M960
Installation of the rear derailleur
XTR
RD-M960
23
* Turn the adjustment bolt together
with the outer casing adjustment
barrel cover.
Becomes
wider
2 mm
Allen key
ST-M966 / ST-M961 / ST-M965 / ST-M960
SIS-SP41
23
Largest
sprocket
Auxiliary release lever
In order to realize the best performance, we recommend that the following combination be used.
Rear derailleur
When no
noise is
heard at all
Pro-Set alignment block
1. Low adjustment
as
Outer casing
23
Lever end
A
DUAL CONTROL lever
Mount the chain on the smallest chainring and the largest
sprocket, and turn the crank arm backward. Then turn the
B-tension adjustment
Largest sprocket
Smallest sprocket
screw to adjust the guide
2
2
pulley as close to the
sprocket as possible but not
so close that it touches.
Next, set the chain to the
smallest sprocket and
1 2
repeat the above to make
1
sure that the pulley does
B-tension
adjustment screw
1
not touch the sprocket.
SIS Adjustment
Adjusting the grip width
Installation of the sprockets
Series
Aluminum cap
4. How to use the B-tension adjustment screw
3. Connecting and securing the inner cable
Rear Drive System
Sealed cap with tongue
* If the rear derailleur moves to a large degree, such as in
bicycles with rear suspension, it is recommended that you
replace the cap with the
Derailleur side
accessory aluminum cap.
The end of the outer casing
which has the aluminum cap
should be at the derailleur side.
Tightening torque :
6 - 8 N·m {53 - 69 in. lbs.}
ag
-1
SI-6GRRF
Rubber shield
Rubber shield
Add 2 links (with the chain on
both the largest sprocket and
the largest chainring)
3T
Technical Service Instructions
Be careful not to bend
36 / 32 / 28
ag -15
T
The sealed cap with tongue
and the rubber shield should
be installed to the outer
casing stopper of the frame.
Outer end cap
A'
Note
• 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 clean the derailleur and lubricate all moving parts (mechanism and pulleys).
• If gear shifting adjustment cannot be carried out, check the degree of parallelism at the rear end of the bicycle. Also check if the
cable is lubricated and if the outer casing is too long or too short.
• If you hear abnormal noise as a result of looseness in a pulley, you should replace the pulley.
• If the wheel becomes stiff and difficult to turn, you should lubricate it with grease.
• Do not apply any oil to the inside of the hub, otherwise the grease will come out.
• You should periodically wash the sprockets in a neutral detergent and then lubricate them again. In
addition, cleaning the chain with neutral detergent and lubricating it can be a effective way of extending
Front
the useful life of the sprockets and the chain.
chainrings
• If the chain keeps coming off the sprockets during use, replace the sprockets and the chain.
• When the chain is in the position shown in the illustration, the chain may sag, Shift the chain onto the
next-larger rear sprocket or the one after.
Rear
• Adjust the RD-M960 reverse spring type rear derailleur from the low side.
sprockets
•Use a frame with internal cable routing is strongly discouraged as it has tendencies to impair the SIS
shifting function due to its high cable resistance.
• Always be sure to use the sprocket set bearing the same group marks. Never use in combination with a
Group marks
sprocket bearing a different group mark.
• 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.
• Make sure that the gear shifting cable and the brake cable do not obstruct each other during braking
operations. If they do obstruct, it may interfere with braking.
Install the cables so that they still have some slack in them even when the handlebars are turned fully in
either direction.
• 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.
• For smooth operation, use the specified outer casing and the bottom bracket cable guide.
• 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.
• 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.
Attach the same outer
end cap to the cut end
of the outer casing.
FH-M965 / FH-M960
ba
■ Operating the brake lever
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.
30T
PE R G L I DE
HY
AN
JA P
aQ
aQ
ap
0
ap
CS
14T
TL-LR15
as
CN-7701
SM-SP17 / SM-BT17
16T
ap
Bottom bracket guide
Tool
(TL-SR20)
ap ap
Chain
96
ar
ap
9S
CS-M960
ap ap
Cassette sprocket
Disassembly
ar
ba
ba
ap
9
12T
Gears
-M
FH-M965 / FH-M960
18T
23T 20T
26T
Freehub
Sprocket spacers
Lock ring spacer
Connect the cable to the rear derailleur and,
after taking up the initial slack in the cable,
re-secure to the rear derailleur as shown in
the illustration.
Lock ring
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
Pull
3-77 Oimatsu-cho, Sakai, Osaka 590-8577, Japan
Please note: specifications are subject to change for improvement without notice. (English)
© May 2005 by Shimano Inc. XBC SZK Printed in Japan
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