Shimano BB-7710, FC-7710 Service Instructions

• Obtain, read and carefully service instructions
when installing parts. A loose, worn, or
damaged parts may cause injury to the rider.
We strongly recommend that only genuine
Shimano replacement parts be used.

Front
Chainwheel

Bottom Bracket

SERVICE INSTRUCTIONS

SI-16S0A

FC-7710

BB-7710

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

144 mm

165 mm, 167.5 mm, 170 mm,

172.5 mm, 175 mm

B.C. 9/16" x 20 T.P.I. (English thread)

1/2" x 1/8", 1/2" x 3/32"

FC-7710Model number

Bolt circle diameter

Crank length

Pedal threads

Chain size

Product specifications

Front Chainwheel

BB-7710Model number

109.5 mmSpindle length

42.5 mmChain line

68 mm (B.C. 1.37 x 24 T.P.I.)Thread dimensions

Bottom Bracket

Note

• Use the applicable chain and bottom bracket
mentioned above.

• For maximum performance we highly recommend
Shimano lubricants and maintenance products.

• For any questions regarding methods of handling or
maintenance, please contact the place of purchase.

1. Place the crank arm onto the bottom bracket

spindle so that it meshes with the serrations on the
spindle.

2. Install the washer and fixing bolt and tighten the

fixing bolt.

3. Lastly, attach the cap.

Installation of the front chainwheel

Tightening torque:

5 - 7 Nm {44 - 60 in. lbs.}

Tightening torque:

35 - 50 Nm {305 - 435 in. lbs.}

Washer

Fixing bolt

8 mm Allen key

Cap

• The crank arm can be removed simply by turning the
fixing bolt counterclockwise.

• Apply grease to the reverse side of the cap and to the
contact surface of the fixing bolt.

1. Use the special tool (TL-UN74-S) to install the

bottom bracket. First install the main body, then the
adapter.

Installation of the Bottom Bracket

Left

Bottom bracket

Right

Apply grease to
the bottom bracket
before installing it.

Adapter/bottom bracket

tightening torque:

50 - 70 Nm {435 - 608 in. lbs.}

Crank arm

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

®

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

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

WARNING

77

Oimatsu-cho 3-cho Sakai Osaka

Please note: specifications are subject to change for
(English)
© Sep. 2024 by SHIMANO INC. ITP

590-8577

Japan Phone

0722-23-3243

improvement without notice.