Front Drive System
General Safety Information
Technical Service Instructions
SI-6BLFA-001
WARNING
Chain
9-speed super narrow chain
such as
CN-7701 / CN-HG93
8- / 7- / 6-speed narrow
chain such as
CN-HG50 / CN-IG51
Reinforced
connecting pin
Chain tool
TL-CN32 / TL-CN23
Black
TL-CN32 / TL-CN23
Add 2 links (with the chain on
both the largest sprocket and
the largest chainring)
Note
• In addition, if pedaling performance does not feel normal, check this once more.
• Check that there is no looseness in any joints or connections before riding the bicycle.
(BB-FC, FC-PD)
• Do not wash the bottom bracket with high-pressure jets of water.
• If you feel any looseness in the bottom bracket axle, 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.
• Apply grease to the bottom bracket before installing it.
• For smooth operation, use the specified outer casing and the bottom bracket cable
guide.
• 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 a 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.
• 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.
• When installing the top route type, choose a frame that has three Outer casing holders
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 handlebars are turned all the way.
• 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.
• 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.
Largest chainring
Note:
Pass the cable
through as shown
in the illustration.
5 mm allen key
Mounting the shifting lever
Wire fixing bolt
Top route type
Altus
Rapidfire Plus
Use a handlebar grip with a maximum
outer diameter of 32 mm.
SL-MC40
Outer casing
7.1mm
Largest sprocket
Chain
6.5mm
Reinforced Connecting Pin
• 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 other place than the place where the chain
has been joined using a reinforced connecting pin or
an end pin. The chain will be damaged if it is cut at a
End Pin
Link Pin
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 may break and cause serious injury.
• 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.
• Obtain and read the service instructions carefully prior to installing the parts.
Loose, worn, or damaged parts may cause injury to the rider. 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.
Cut off the excess length of inner cable and then install the inner
end cap.
Chain length
Front Derailleur
In order to realize the best performance, we recommend that the following combination be
used.
Series
Silver
<FD-M330-E>
Use the special tools (TL-UN74-S and TL-UN66) to install the bottom
bracket (1) and the front derailleur so that they face as shown in the
illustration. If the bottom bracket shell width is 68 mm, insert a spacer
(2.5 mm) as shown in the illustration when installing the front derailleur.
Install the adapter (2), and then use an 8 mm Allen key to install the
front chainwheel.
Front Drive System
• 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 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.
Installation of the Front Derailleur,
Bottom Bracket and Front Chainwheel
SP40
Front derailleur
FD-M411 / FD-M410 / FD-M330-E
Front chainwheel
FC-M341 / FC-M341-8
Bottom bracket
BB-UN26 / BB-UN26-E / BB-ES25
Chain
Tightening torque:
6 - 8 N·m {53 - 69 in. lbs.}
➀ Bottom Bracket
Spacer (2.5mm)
CN-HG50 / CN-HG40
Bottom bracket cable guide
➁ Adapter
Normal type
Tightening torque:
5 - 7 N·m {44 - 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
SM-SP17 / SM-BT17 / SM-SP18 / SM-BT18
5 mm Allen key
➂ Front Chainwheel
Specifications
Front Derailleur
X = Available
Model number
FD-M410 / FD-M411
FD-M330-E
X
X
Normal type
Top route type
X
X
20T
20T
Min. difference between top and intermediate
10T
10T
Chainstay angle (a)
Adapter / bottom bracket tightening torque:
50 - 70 N·m {435 - 608 in. lbs.}
Front chainwheel tightening torque:
35 - 50 N·m {305 - 435 in. lbs.}
S, M, L
–
63°- 66°, 66°- 69°
66°- 69°
3. Top adjustment
<FD-M410 / FD-M411>
Install using the special tool TL-UN74S / TL-UN66.
First install the main body, then the
adapter.
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.
50.0mm
Applicable chain line
Installation band diameters:
S (28,6 mm), M (31,8 mm), L (34,9 mm)
Pull
Set so that the clearance between the chain guide outer plate and
the chain is 0-0.5 mm.
Front chainwheel tooth difference
Front derailleur installation band diameter
Pull
• 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.
Top adjustment
screw
Chain position
Smallest sprocket
Largest chainring
Chainstay angle
Adapter
Main body
Pro-Set
alignment block
Chain guide outer
plate
Chain
Adapter / bottom bracket tightening torque:
50 - 70 N·m {435 - 608 in. lbs.}
Chainwheel
Model number
FC-M341-8
Chainwheel tooth
combination
FC-M341
42-32-24T
Bolt circle diameter
Crank arm length
Applicable bottom bracket
Applicable front derailleur
Pedal thread dimensions
FC-M341
Low adjustment
screw
48-38-28T
104mm / 64mm
104mm / 64mm
170 mm, 175 mm
170 mm, 175 mm
BB-ES25
BB-UN26
Largest sprocket
Model number
Chain
8 mm Allen key
(TL-WR38)
BC 9/16" X 20 T.P.I. (English thread)
BB-UN26-E
LL123
LL113
Spindle length
123 mm
113 mm
123 mm
113 mm
Chain line
50.0 mm
50.0 mm
50.0 mm
50.0 mm
Applicable front
chainwheel
FC-M411
FC-M410
FC-M411
FC-M410
BC 1.37" X 24 T.P.I.
(68, 73mm)
BC 1.37" X 24 T.P.I. (73m)
M 36 X 24 T.P.I. (70mm)
Model number
BC 1.37" X 24 T.P.I. (68, 73 mm)
M 36 X 24 T.P.I. (70mm)
BB-ES25
BB-ES25-E
BB-UN26 (-K)
118
118
LL123
Securely tighten
118 mm
118 mm
123 mm
50.0 mm
50.0 mm
50.0 mm
Pro-Set gauge
Thread dimensions
FC-M410-8
FC-M411
BC 1.37" X 24 T.P.I.
(68, 73mm)
BC 1.37" X 24 T.P.I.
(68, 73mm)
BC 1.37" X 24 T.P.I.
(68mm)
Lever (B)
Pro-Set alignment block
Chain line
FC-M410-8
3
2
After completion of steps 1 - 4, move the shifting lever to check the
shifting. (This also applies if shifting becomes difficult during use.)
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
Inserting the inner cable
Insert the inner cable into the outer casing from the end
with the marking on it. Apply grease from the end with the
marking in order to
maintain cable operating
efficiency.
1 mm
3 mm
Gear shifting operation
To shift from a small chainring to a larger chainring
(Lever A)
Cutting the outer casing
Lever (A) initial position
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)
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.
Chain guide
When lever (A) is pressed once, there is a shift of one step
from a small chainring to a larger chainring.
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
Example:
from intermediate chainring to largest chainring.
Chain
5. Troubleshooting chart
1
Marking
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.
Chain guide
inner plate
Outer casing adjustment barrel
Adjust and then install the front derailleur as shown in the illustration.
Do not remove the Pro-Set alignment block at this time.
Spindle length
Applicable front
chainwheel
2. Connecting and securing the inner cable
Front chainwheel tightening torque:
35 - 50 N·m {305 - 435 in. lbs.}
Gear teeth should
come within this
range
Stamped marking
Intermediate
chainring
Operate lever (B) 2 or more times, check on the indicator
that the low position is correct, and then secure the inner
cable.
While firmly pulling the inner cable, secure by tightening the
fixing bolt with a 5 mm Allen key.
BB-UN26
LL113
Thread dimensions
Chain position
Largest sprocket
FD-M410 / FD-M411
LL123
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
Bottom Bracket
Stamped marking
Smallest chainring
BB-UN26 (-K)
FD-M411 / FD-M410 / FD-M330-E
BC 9/16" X 20 T.P.I. (English thread)
Chain position
Use an 8 mm Allen key to install the front chainwheel.
4. Adjustment of the intermediate chainring
Attach the same outer end cap to the cut end of the outer
casing.
Outer end cap
If the chain falls to the crank side.
Tighten the top adjustment screw
clockwise (about 1/4 turn).
If shifting is difficult from the
intermediate chainring to the
largest chainring.
Loosen the top adjustment screw
counterclockwise (about 1/8 turn).
If shifting is difficult from the
intermediate chainring to the
smallest chainring.
Loosen the low adjustment screw
counterclockwise (about 1/4 turn).
If there is interference between the
chain and the front derailleur inner
plate at the largest chainring.
Tighten the top adjustment screw
clockwise (about 1/8 turn).
If there is interference between the
chain and the front derailleur outer
plate at the largest chainring.
Loosen the top adjustment screw
counterclockwise (about 1/8 turn).
If the intermediate chainring is
skipped when shifting from the
largest chainring.
Loosen the outer casing adjustment
barrel counterclockwise
(1 or 2 turns).
If there is interference between the Tighten the outer casing adjustment
chain and front derailleur inner
barrel clockwise (1 or 2 turns).
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.
To shift from a large chainring to a smaller chainring
(Lever B)
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 (B)
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.
Tighten the low adjustment screw
clockwise (about 1/2 turn).
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)
© Jan. 2007 by Shimano Inc. XBC IZM Printed in Singapore.
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