SI-6MPFA-003-00

General Safety Information

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.

If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool which

Chain

Reinforced connecting pin

Chain tool is not suitable for the type of chain is used, sufficient connection force may not be obtained, which could cause the chain to break or fall off.

• If it is necessary to adjust the length of the chain due

9-speed super narrow chain such as

CN-7701 / CN-HG93

6.5mm

to a change in the number of sprocket teeth, make the cut at some other place than the place where the chain

8- / 7- / 6-speed narrow chain such as

CN-HG50 / CN-HG40

7.1mm

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.

• 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

Silver

Black

Reinforced Connecting Pin

End Pin

TL-CN32 / TL-CN27

TL-CN32 / TL-CN27

Link Pin 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.

• When the chain is in the position shown in the illustration, the chain may contact the front 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.

Front chainrings

• Apply grease to the left and right adapters before installing them.

• For smooth operation, use the specified outer casing and the bottom bracket cable guide.

• 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.

Rear sprockets

• When installing the top route type, choose a frame that has three outer casing holders as shown in the 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

Outer casing holders 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.

Technical Service Instructions

SI-6MPFA-003

Front Drive System

Specifications

Front Derailleur

Model number

Normal type

Top route type

Front chainwheel tooth difference

Min. difference between top and intermediate

Front derailleur installation band diameter

Chainstay angle ( a )

Applicable chain line

Applicable front chainwheel

Chainwheel

Model number

Chainwheel tooth combination

Bolt circle diameter

Crank arm length

Chain line

Bottom bracket shell width

Thread dimensions

Applicable bottom bracket

FD-M770-E FD-M770 FD-M771

X

X

22T

12T

–

66° - 69°

50 mm

44T

X

X

22T

12T

S, M, L

66° - 69°

50 mm

44T / 48T

X

X

22T

12T

S, M, L

66° - 69°

50 mm

44T

X = Available

FD-M772 / M772A

FD-M773

X

X

22T

12T

S, M, L

63° - 66°

50 mm

44T / 48T

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.

Chainstay angle

FC-M770

44-32-22T

104 mm / 64 mm

165 mm, 170 mm, 175 mm, 180 mm

50 mm

68, 73 mm

BC1.37 (68, 73mm)

SM-BB70

FC-M771-K

48-36-26T

104 mm / 64 mm

165 mm, 170 mm, 175 mm, 180 mm

50 mm

68, 73 mm

BC1.37 (68, 73mm)

■

Note

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.

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.

Chainwheel

(largest chainring)

Chain guide

Tightening torque :

5 - 7 N·m {44 - 60 in. lbs.}

Chain length

Add 2 links (with the chain on both the largest sprocket and the largest chainring)

Largest sprocket

Chain

3 mm Allen key 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.

SIS Adjustment

Be sure to follow the sequence described below.

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.

Pro-Set alignment block

FD-M771/ M773

Chain position

Largest sprocket

Smallest chainring

B A

Low adjustment screw

FD-M770/

M772/M772A

B

Chain guide inner plate

A

Chain

2. Connecting and securing the inner cable

Operate lever (B) two times or

Lever (B) 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.

Largest chainring

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

When lever (A) is pressed once, there is a shift of one step from a small chainring to a larger chainring.

Example:

from intermediate chainring to largest chainring.

To shift from a large chainring to a smaller chainring

When lever (B) is pressed once, there is a shift of one step from a large chainring to a smaller chainring.

Example:

from largest chainring to intermediate chainring.

Lever (A) initial position Lever (B)

2-way release

Installation of the lever

4 mm Allen key

Use a handlebar grip with a maximum outer diameter of 36 mm.

Tightening torque :

5 N·m {44 in. lbs.}

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.

Tightening torque :

2.5 N·m {22 in. lbs.}

Outboard Inboard

Installation of the Front Chainwheel and Front Derailleur

Follow the procedure in the figure.

1, 2

Use the special tool TL-FC32/36 to install the right adapter

(counterclockwise thread) and the left adapter (clockwise thread).

Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.}

3

Insert the right crank unit.

4

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.}.

■

Spacer installation method

(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.

TL-FC16

Push up

5

Plate pin

Stopper plate

4

6

< FC-M770 >

Band Type

68 mm 68 mm

Bracket Type

BB mounttype bracket

< FC-M771-K >

Band Type

68 mm

* 1

2

TL-FC32

Spacer

Wide groove area

Inner cover

Note :

Set the stopper plate in the right direction as shown in illustration.

3

2.5 mm

1

1.8 mm 0.7 mm

Chaincase Stay Type

68 mm

* 2 Chaincase stay

68 mm

Bracket Type

BB mounttype bracket

73 mm 73 mm 73 mm 73 mm 73 mm

In order to realize the best performance, we recommend that the following combination be used.

Series

Rapidfire (Shifting lever)

Outer casing

Front derailleur

Front chainwheel

Chain

Bottom bracket cable guide

XT

SL-M770

SIS-SP41

FD-M770 / FD-M771 / FD-M772 / FD-M773 / FD-M770-E / FD-M772A

FC-M770 / FC-M771-K

CN-HG93

SM-SP17 / SM-BT17

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.

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

Please note: specifications are subject to change for improvement without notice. (English)

© Apr. 2009 by Shimano Inc. XBC SZK Printed in Japan.

* 1 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.

For bracket type

Install as shown in the illustration.

Front Derailleur

Front Chainwheel

Adjust and then install the front derailleur as shown in the illustration. Do not remove the Pro-Set alignment block at this time.

Pro-Set alignment block

Bolt Gear teeth should come within this range

Pro-Set gauge

Adapter

Tightening torque :

35 - 50 N·m {305 - 435 in. lbs.}

Adapter

Inner cable

Inner hole cover

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.

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.

Outer end cap

• FD-M770/ FD-M772/ FD-M772A

< Normal type >

Note:

Pass the cable through as shown in the illustration.

Wire fixing bolt

< Top route type >

• FD-M771/FD-M773

Note:

Pass the cable through as shown in the illustration.

FD-M771 FD-M773

Wire fixing bolt

Tightening torque :

6 - 7 N·m {52 - 60 in. lbs.}

After taking up the initial slack in the cable, re-secure to the front derailleur as shown in the illustration.

Normal type Top route type

Pull

5 mm Allen key

Pull

3. Top adjustment

Set so that the clearance between the chain guide outer plate and the chain is

0 - 0.5 mm.

FD-M770/M772/M772A

Chain position

Smallest sprocket

Largest chainring

FD-M771/ M773

Top adjustment screw

Chain guide outer plate

Chain

4. Adjustment of the intermediate chainring

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.

Chain guide inner plate

Chain

B

Chain position

Largest sprocket

Intermediate chainring

B

A

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.

If shifting is difficult from the intermediate chainring to the largest chainring.

If shifting is difficult from the intermediate chainring to the smallest chainring.

If there is interference between the chain and the front derailleur inner plate at the largest chainring.

If there is interference between the chain and the front derailleur outer plate at the largest chainring.

Tighten the top adjustment screw clockwise (about 1/4 turn).

Loosen the top adjustment screw counterclockwise

(about 1/8 turn).

Loosen the low adjustment screw counterclockwise

(about 1/4 turn).

Tighten the top adjustment screw clockwise (about 1/8 turn).

Loosen the top adjustment screw counterclockwise

(about 1/8 turn).

If the intermediate chainring is skipped when shifting from the largest chainring.

If there is interference between the chain and front derailleur inner plate when the rear 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.

If the lever is stiff when shifting from the intermediate chainring to the largest chainring

Loosen the outer casing adjustment barrel counterclockwise (1 or 2 turns).

Tighten the outer casing adjustment barrel clockwise

(1 or 2 turns).

Tighten the low adjustment screw clockwise (about 1/2 turn).

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.