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SI-50F0A-003-00
General Safety Information
WARNING
Use neutral detergent to clean the chain. Do not use alkali-based or acidbased detergents such as rust cleaners, as they may result in damage
/or failure of the chain.
and
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.
– To avoid serious injuries:
Chain length
Mount the chain onto the chainring and the sprocket, and then adjust the length of the
chain by adding two links, or four links at a maximum.
Reinforced
Chain
9-speed super narrow
chain such as
CN-7701/ CN-HG93
8- /7-/ 6-speed narrow
chain such as
CN-HG50 /CN-IG51
If connecting pins other than reinforced connecting pins are used, or if a
reinforced connecting pin or tool which is not suitable for that type of
chain is used, sufficient connection force may not be obtained, which
could cause the chain to break or fall off.
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 place where it has been joined
with a reinforced connecting pin or an end pin.
End pin
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.
Obtain and read the service instructions carefully prior to installing
the parts. Loose, worn, or damaged parts may cause serious injury to
the rider.
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.
connecting
Silver
Black
Link pin
pin
6.5 mm
7.1 mm
Chain tool
TL-CN31/
TL-CN22
TL-CN31/
TL-CN22
and
TL-CN30 /
TL-CN21
Reinforced connecting pin
Sprocket
CS-S500
18T/ 20T
(t = 2.0 mm)
16T – 23T
(t = 2.3 mm)
NOTE:
Applicable hubs
Applicable sprockets
Applicable dropout width
Applicable dropout shape
This product cannot be used with coaster brake-type products.
This product is for single front chainwheels only.
Periodically clean the chain tensioner and lubricate the pulley.
If there is a large amount of play in the pulley and an abnormal amount of
noise is generated while riding, replace the pulley unit.
Do not disassemble the pulley unit.
If the tension applied is too strong, noise may be generated while riding.
If the chain becomes elongated and excessive looseness occurs, readjust the
chain tension.
Parts are not guaranteed against natural wear or deterioration resulting from
normal use.
For any questions regarding methods of handling or maintenance, please
contact the place of purchase.
Internal 7-speed /8-speed
16T – 23T
4 – 9 mm
Vertical
Installation to the frame
Mount the chain onto the sprocket, and then set the hub axle into the dropouts.
1.
Place the CT-S510 bracket onto the right side of the hub axle, and place the non-
2.
turn washer onto the left side of the hub axle. At this time, turn the cassette joint so
that the projecting parts of the bracket and non-turn washer fit into the grooves of
the dropouts. If this is done, the cassette joint can be installed so that it is almost
parallel to the chainstay.
(Loosen the arm fixing bolt at this time so that the pulley does not interfere with
other parts such as the frame.)
Cassette joint
Groove of dropout
Non-turn washer
(8L)
Chainstay
Place the accessory 2 mm spacer onto the right side (outside of the chain
3.
tensioner), and then secure the wheel to the frame with the cap nuts.
(Recommended tightening torque: 30 – 45 N·m {300 – 450 kgf·cm})
CT-S510 bracket
Arm fixing bolt
Spacer
(right side
only)
Adjustment of the chain line
Loosen the chain line adjustment screw.
1.
Move the pulley sideways until the sprocket and pulley
2.
are in a straight line.
Tighten the chain line adjustment screw to secure the
3.
pulley.
Sprocket
Pulley
Tightening torque:
1 – 2 N·m
{10 – 20 kgf·cm}
Chain line adjustment screw
Move
Adjustment of the chain tension
Mount the chain onto the pulley, and then turn the arm upward so that there is 15 –
1.
25 mm of slackness in the chain when tension is being vertically applied to the chain.
(If tension cannot be applied to the chain
in the upward direction, apply the
tension in the downward direction
instead. If tension cannot be applied in
either the upward or downward direction,
add two links to the chain and apply the
tension in the downward direction.)
Upward
direction
CT-S510
Chain Tensioner
Technical Service Instructions
Be sure to read these service instructions in conjunction with the service
instructions for the internal 7-speed
/ 8-speed hubs before use.
SI-50F0A-003
Adjust so that there is 15 – 25 mm
Adjust so that there is 15 – 25 mm
of slackness in the chain when a
of slackness in the chain when a
force of about 100 g is applied.
force of about 100 g is applied.
Tighten the arm fixing bolt to secure the
2.
arm.
Turn the crank arm and check that the
3.
wheel turns smoothly with no abnormal
noise.
* Service Instructions in further languages are available at:
http://techdocs.shimano.com
Please note: Specifications are subject to change for improvement without notice. (English)
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, Osaka 590-8577, Japan
Arm fixing bolt
Tightening torque:
12 – 14 N·m
{120 – 140 kgf·cm}
C
Sep. 2024 by SHIMANO INC. ITP
Downward
direction
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