SI-09G0B-003-00

General Safety Information

WARNING

Maintenance interval depends on the usage and riding circumstances. Clean regularly the chain with an appropriate chaincleaner. Never use alkali based or acid based solvents such as rust cleaners. If those solvent be used chain might break and cause serious injury.
In order to obtain good gear shifting performance, the CN7900 / CN-6700 has a forward side and a reverse side, and the sides are marked so that the CN-7900 / CN-6700 will face the correct way when installed. The proper design performance will be obtained when the CN-7900 / CN-6700 is installed so that it faces the correct way. If it is installed so that it faces the opposite way, the chain may come off and the bicycle may fall over and serious injury may occur as a result. Use the reinforced connecting pin only for connecting the narrow type of chain. If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool which 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.
Chain 10-speed super narrow chain such as CN-7900 / CN-6700 Reinforced connecting pin Chain tool TL-CN32 TL-CN23 TL-CN27
Obtain and read the service instructions carefully prior to installing the parts. We strongly recommend only using genuine Shimano replacement 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.
In order to obtain good gear shifting performance, the CN-7900 / CN-6700 has a forward side and a reverse side, and the sides are marked so that the CN-7900 / CN-6700 will face the correct way when installed.

Forward (outer side)

The side with the mark shown in the illustration is the forward side (outer side).

Reverse (inner side)

As illustrated in Fig.A, we strongly recommend to set the connecting pin in the hole of the outer link on the front side in the direction of travel. The chains level of strength is enhanced Chains direction of travel compared to the method in Fig.B.
Link surface Make sure that the connecting pin is aligned with the outer link surface from the side that the pin is inserted. It should feel smooth and flush when you run your finger Connecting pin over it. The pin will protrude slightly on the backside after the break off pin is removed. If it is necessary to adjust the length of the chain due to a change in the number of sprocket teeth, make the cut at some Reinforced Connecting Pin other place than the place where the chain has been joined using a reinforced connecting pin. The chain will be damaged if it is cut at a place Link Pin Link Pin where it has been joined with a reinforced connecting pin. When readjusting the length of the chain, be sure to insert the reinforced connecting pin from the same side as the chain cutter was inserted (the same direction as when the chain was cut). 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.

Inner link

Outer link Connecting pin
Technical Service Instructions

SI-09G0B-003

CN-7900 / CN-6700

% Features

In order to provide greater connecting strength, this reinforced connecting pin has a special shape (the pin is thicker at both ends than at the barrel). A guide for making the pin easier to push into the chain is also provided.

% Method of use

Chain tool
Reinforced connecting pin

(1) Push in

(2) Press

(3) After pressing

(4) Break off the excess part
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) Aug. 2009 by Shimano Inc. XBC SZK Printed in Japan.

SI-5X90A-002-00

General Safety Information

WARNING

In order to obtain good gear shifting performance, the CN-7900 / CN-6700 has a forward side and a reverse side, and the sides are marked so that the CN-7900 / CN-6700 will face the correct way when installed. The proper design performance will be obtained when the CN-7900 / CN-6700 is installed so that it faces the correct way. If it is installed so that it faces the opposite way, the chain may come off and the bicycle may fall over and serious injury may occur as a 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. If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool which 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.
Chain 10-speed super narrow chain such as CN-7900/ 7801 / 6700 / 6600 / 5600 Reinforced connecting pin Chain tool TL-CN32 TL-CN23 TL-CN27
In order to realize the best performance, we recommend that the following combination be used.
Series Shifting lever Gears Outer casing Rear derailleur Type Freehub Cassette sprocket Chain Bottom bracket cable guide SS FH-6700 CS-6700 CN-6700 CN-6600 SM-SP17 ULTEGRA Double ST-SIS-SP41 RD-6700 GS Triple ST-6703
For an 11-28T sprocket (SS type only) Add 2 links (with the chain on both the largest sprocket and the largest chainring)

Largest sprocket

Largest chainring

5. SIS Adjustment

Operate the shifting lever several times to move the chain to the 2nd sprocket. Then, while pressing the lever just enough to take up the play in the lever, turn the crank arm. Play 3 2

+2 links

Stroke adjustment and cable securing

1. Top adjustment

Turn the top adjustment screw to adjust so that the guide pulley is below the outer line of the smallest sprocket when looking from the rear.
Outer line of smallest sprocket

Lever (A)

When shifting to 3rd
When no sound at all is heard

with groove (2)

Specifications
Type Total capacity SS 33 teeth or less 28 T 11 T 16 teeth or less GS 39 teeth or less 28 T 11 T 22 teeth or less
Top adjustment screw Guide pulley
Make sure that the connecting pin is aligned with the outer link surface from the side that the pin is inserted. It should feel smooth and flush when you run your finger over it. The pin will protrude slightly on the backside after the break off pin is removed. If it is necessary to adjust the length of the chain due to a change in Reinforced Connecting Pin the number of sprocket teeth, make the cut at some other place than the place where the chain has been joined using a reinforced connecting pin. The chain will be damaged if it is cut at a place where it has been joined with a reinforced connecting pin. Check that the tension of the chain is correct and that the chain is not Link Pin Link Pin 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. 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.
Largest sprocket Smallest sprocket Front chainwheel tooth difference
2. Connection and securing of the cable
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.

Tightening torque: 6 - 7 Nm {52 - 60 in. lbs.}
* When using with junior models, use the CS-6600. * The number of teeth on the smallest sprocket for SS-specification rear derailleurs is 15T. * The number of teeth on the smallest sprocket for GS-specification rear derailleurs is 13T.
Tighten the outer cable adjusting barrel until the chain returns to the 2nd sprocket. (clockwise)
Note: Be sure that the cable is securely in the groove.
Loosen the outer casing adjustment barrel until the chain touches the 3rd sprocket and makes noise. (counter clockwise)
Installation of the rear derailleur
When installing, be careful that deformation is not caused by the B-tension adjustment screw coming into contact with the dropout tab.
5 mm Allen key Outer casing adjustment barrel Outer casing adjustment barrel

Best setting

If gear shifting operations cannot be carried out smoothly, clean 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. For smooth operation, use the specified outer casing and the bottom bracket cable guide. Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly. 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. The tension pulley has a mark which indicates the direction of rotation. The side with the arrow is the front side. 4-mm cap The end of the outer casing which has the aluminum cap should be at the derailleur side.

Dropout tab Groove

The best setting is when the shifting lever is operated just enough to take up the play and the chain touches the 3rd sprocket and makes noise. * Return the lever to its original position (the position where the lever is at the 2nd sprocket setting and it has been released) and then turn the crank arm clockwise. If the chain is touching the 3rd sprocket and making noise, turn the outer casing adjustment barrel clockwise slightly to tighten it until the noise stops and the chain runs smoothly. Operate lever to change gears, and check that no noise occurs in any of the gear positions. For the best SIS performance, periodically lubricate all power-transmission parts.

3. Low adjustment

Bracket spindle tightening torque: 8 - 10 Nm {70 - 86 in. lbs.}
B-tension adjustment screw
Turn the low adjustment screw so that the guide pulley moves to a position directly in line with the largest sprocket.

Chain length

In order to obtain good gear shifting performance, the CN7900 / CN-6700 has a forward side and a reverse side, and the sides are marked so that the CN-7900 / CN-6700 will face the correct way when installed.

Forward (outer side)

The side with the mark shown in the illustration is the forward side (outer side).
Guide pulley Low adjustment screw

Derailleur side

Aluminum cap Plastic cap or 4-mm cap
Replacing the rear derailleur 4. How to use the B-tension adjustment screw
Mount the chain on the smallest chainring and the largest sprocket, and turn the crank arm backward. Then turn the Btension adjustment screw to adjust the guide pulley as close to the sprocket as possible but not so close that it touches. Next, set the chain to the smallest sprocket and repeat the above to make sure that the pulley does not touch the sprocket.
Largest sprocket Smallest sprocket
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.
Guide pulley / Tension pulley Tightening torque : 2.45 - 4.9 Nm {21 - 43 in. lbs.}

3 mm Allen key

Reverse (inner side)
Technical Service Instructions

SI-5X90A-002

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Smallest sprocket Largest chainring
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

RD-6700

Guide pulley Tension pulley 90
Chain B-tension adjustment screw
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

Rear derailleur

* 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.
Right angle to the ground