Shimano SM-BB80 Manual

Shimano Cykeltilbehør SM-BB80

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Side 1/1

SM-BB80

FC-M815 FC-M810

83 mm 68, 73 mm

1.37 X 24 T.P.I.

Technical Service Instructions SI-1L70A-001

SM-BB80

General Safety Information

WARNING

• 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.

• Read these Technical Service Instructions carefully, and keep them in a

safe place for later reference.

Note

• If the bottom bracket shell is not parallel, gear shifting performance will

drop.

• 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 you feel any looseness in the bearings, the bottom bracket should be

replaced.

• In addition, if pedaling performance does not feel normal, check this once

more.

• Do not wash the bottom bracket with high-pressure jets of water.

• When installing the left and right adapters, be sure to install the inner

cover too, otherwise the waterproofing performance will drop.

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

• Be sure to read the service instructions for the front chainwheel in

conjunction with these service instructions.

• 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.

■Spacer installation method

(1) Check whether the width of the bottom bracket shell is 68 mm,

73 mm or 83 mm.

(2) Next, install the adapter while referring to the illustrations

below.

Installation of the adapter

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

thread), the inner cover and the left adapter (clockwise thread).

68 / 73 / 83 mm

For bracket type

Install as shown in the illustration.

Bolt

AdapterAdapter

Front Derailleur

Left hand adapter

Front Chainwheel

Tightening torque :

35 - 50 N·m {305 - 435 in. lbs.}

Tightening torque :

35 - 50 N·m {305 - 435 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 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

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

Right hand adapter

Inner cover

Bottom bracket shell width

Thread dimensions

Bottom Bracket

Specifications

Applicable front chainwheel

Model number

■Chain Device

When installing a BB mount-type chain device to a

bicycle, refer to the table below to determine the number

of spacers for the right side. If the thickness of the

spacers used is not as given in the table, the front

chainwheel may become loose and fall off, or problems

with gear shifting may occur. When installing a BB mount-

type chain device or a ISCG-type chain device to a

bicycle, you need to be careful to avoid interference.

68 mm 73 mm 83 mm

Bottom bracket shell width

Model number

When using in combination with the FD-M665-E (2.5 mm chain device)

Install the chain device and the front

derailleur as shown in the illustration.

• If using in combination with an BB mount-

type front derailleur, make sure that the

chain device does not obstruct the BB

mount-type bracket.

Not needed No available

Not needed

FC-M665 FC-M810-2

FC-M815-2

BB mount-type

bracket

Chain Device

A: 2.5 mm spacer

68 mm

83 mm

68 mm 73 mm 83 mm

Bottom bracket shell width

Model number

For chain device

thickness of 2.5 mm 2.5 mm x 1 Not needed

2.5 mm x 1

FC-M810-1 FC-M665

FC-M810-2 FC-M665

FC-M815-1 FC-M815-2

68 mm 73 mm 83 mm

Bottom bracket shell width

Model number

For chain device

thickness of 5.0 mm Not needed No available

Not needed

FC-M810-1 FC-M665

FC-M810-2 FC-M665

FC-M815-1 FC-M815-2

The example in the

illustration shows a BB

mount-type chain device.

SI-1L70A-001-00

Band Type

Bottom bracket shell width

Bracket Type

BB mount-

type bracket

(2.5mm)

(2.5mm)(2.5mm)(2.5mm) (2.5mm)

BB mount-

type bracket

(2.5mm)

(2.5mm)(2.5mm)(2.5mm) (2.5mm)

68 mm

73 mm

83 mm

Produkt Specifikationer

Mærke:	Shimano
Kategori:	Cykeltilbehør
Model:	SM-BB80

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