Shimano RD-7700 Service Instructions Manual

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

B-tension
adjustment screw

Bracket spindle tightening torque:

8 - 10 Nm {70 - 86 in. lbs.}

Chain length

Chain

90°

Guide pulley

Tension pulley

Right angle to the ground

SS type

Smallest sprocket Largest chainring

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.

Stroke adjustment and cable
securing

1

2

1 2

Guide pulley

Outer line of smallest sprocket

Top adjustment

screw

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.

Pull

3. Low adjustment

Turn the low adjustment screw so that the guide
pulley moves to a position directly in line with the
largest sprocket.

1

1 2

2

Largest sprocket

Guide pulley

Low adjustment

screw

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 B-tension 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.

1

2

1 2

2

1

B-tension

adjustment

screw

Largest sprocket Smallest sprocket

5. SIS Adjustment
(1) Operate the shifting lever to move the chain from

the top gear to the 2nd gear.

* If the chain will

not move to the 2nd gear, turn
the outer casing adjustment barrel to increase the
tension-----

➀ (counter clockwise)

* If the chain moves past the 2nd gear, decrease

the tension---

➁

(clockwise)

Dropout tab

3rd 2nd Top

Outer casing
adjustment
barrel

➀

➁

(2) Next with the chain on the 2nd gear, increase the

inner cable tension

① while turning the crank arm

forward. Stop turning the outer casing adjustment
barrel

just before the chain makes noise against

the 3rd gear.

This completes the adjustment.

Counter-clockwise

➀

Clockwise

➁

Outer casing
adjustment barrel

ST-7400

Cable fixing position Lever Sprockets

Position-A

ST-7700 /SL-7700 9

ST-6400 8

Position-B 8

RD- 7700

Position-B

Position-A

For the best SIS performance, periodically lubricate
all power-transmission parts.

Note

• For smooth operation, always be sure to 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.

• The tension pulley has a mark which indicates the
direction of rotation. The side with the arrow is the
front side.

• Because the high cable resistance of a frame with
internal cable routing would impair the SIS function,
this type of frame should not be used.

• The end of the outer casing which has the
aluminum cap should be at the
derailleur side.

• For any questions regarding methods of installation,
adjustment, maintenance or operation, please contact
a professional bicycle dealer.

14 teeth or less

Type SS

Total capacity 26 teeth or less

Largest sprocket 26T

Smallest sprocket 11T

Front chainwheel tooth
difference

SERVICE INSTRUCTIONS

SI-5TJ1D

Before use, read these instructions carefully, and follow them
for correct use.

Rear Derailleur

RD-7700

Specifications

Series

DURA-ACE

Rear derailleur

RD-7700

ST-7700 / SL-7700 / SL-BS77

Bottom bracket
cable guide

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

Shifting lever

Freehub

FH-7700

Sprockets

9

Cassette sprocket

CS-7700

Chain

CN-7700

Outer casing

SIS-SP40

SM-SP17

4-mm cap

Plastic cap or 4-mm capAluminum cap

Derailleur side

One Holland Irvine CA 92618 U.S.A. Phone [phone]

®

Industrieweg 24 NL-8071 CT Nunspeet Holland Phone [phone]

77

Oimatsu-cho 3-cho Sakai Osaka

590-8577

Japan Phone

0722-23-3243

These service instructions are printed on
recycled paper and can be recycled again

Please note: specifications are subject to change for improvement
without notice. (English)
©Jun. 1997 by Shimano Inc. XBC SZK Printed in Japan.