CT-5 Mini Chain Tool
A chain tool is used for removing, installing, and
sizing chains used on derailleur-equipped road
and mountain bikes. The CT-5 Chain Tool works like
a heavy duty shop tool but is small and light for
taking on the road or trail for emergency repairs.
Instructions for CT-5 Tool:
The procedures for separating and assembling
derailleur chains vary significantly, depending
on the type of connection system used by the
chain manufacturer. There are three types:
• The first type uses a special replacement rivet,
which is pressed in with a chain tool each time
the chain is separated and assembled (Figure 1).
• The second type uses reusable rivets, which
are partially pressed out with a chain tool to
separate the chain, and then pressed back to
assemble the chain (Figure 2).
• The third type uses a special master link to
separate and assemble the chain (Figure 3).
Separation an d assembly of this type does not
require a chain tool. The process is performed
by hand or with a Park Tool Master Link Pliers
(MLP-1). A chain tool is only used to remove
links when shortening the chain length.
Below are general instructions for using a chain
tool to separate and assemble chains using
replacement rivets and reusable rivets. Always
consult the chain manufacturer for instructions
specific to your type and model of chain.
Separating Chain:
1. Place link of chain into primary cradle of tool.
2. Center chain tool pin on chain rivet and turn
handle to force rivet out backside of chain.
a. If chain uses a replacement rivet, press
old rivet completely out backside of chain.
b. If chain uses a reusable rivet, do not press
rivet completely out backside of chain;
only press rivet enough to allow chain to
be separated.
Assembly of Chain:
1. Place assembled link of chain into primary
cradle of tool. If chain uses a replacement rivet,
insert pilot end of replacement rivet into link.
2. Center chain tool pin on chain rivet and turn
handle until rivet is pressed into chain. When
properly assembled, an equal amount of rivet
should be showing on each side of chain.
3. Remove tool from chain. If chain uses a
replacement rivet, remove pilot according to
manufacturer’s instructions.
4. If a tight chain link develops during the as-
sembly process, place link in tight link cradle
and turn until pin contacts rivet. Turn handle
slightly to press on rivet and loosen tight link.
GSC-1 GearClean Brush
The GSC-1 is specially designed to remove
dirt, grit, and grime from the sprockets on the
rear wheel. Just insert curved end of the GSC-
1 between the gears and pedal backward. Then
use the brush end to remove the loosened
dirt and grit. The brush also works nicely to
clean derailleurs, brakes, chains, and wherever
grease and dirt collect.
Tip:
It may be a wise investment to buy a
second GSC-1 so you can use one exclusively
for the drivetrain (chain, derailleurs, sprockets)
and the other for dirt and mud on other parts
of the bike. The grease and oil from the chain
and derailleurs will stick in the brush and then
spread to other parts of your bike.
DCW-1, DCW-2 and DCW-3
Cone Wrenches
Cone Wrenches are designed to fit the narrow
wrench flats on hub adjustment cones and
locknuts when disassembling, assembling,
and adjusting wheel hubs.
HR-8 Hex Wrench
The HR-8 is used for tightening and loosen-
ing 8mm socket head crank bolts. It can also
be used on pedals that require a 8mm hex
wrench for removal and installation.
SW-7.2 Triple Spoke Wrench
A wheel occasionally needs to be straightened
or “trued” in order to keep the rim running
straight as it passes between the brake pads.
A spoke wrench is required for tightening and
loosening spoke nipples when truing a wheel.
The SW-7.2 Spoke Wrench fits the three most
popular spoke nipple sizes on the market: .127
(3.23mm), .130 (3.30mm) and .136 (3.45mm).
Wheel Truing Basics:
Detailed instructions for truing wheels can be
found in a number of books, as well as on-line
at www.parktool.com. Below are instructions
for basic lateral truing, which can easily be
performed with the wheel in the bike (more
advanced truing requires the wheel to be
removed from the bike and trued in a truing
stand, such as the Park Tool TS-2.2 or TS-8).
1. Place bike in Park Tool Repair Stand or lift
bike off the ground so wheel can spin freely.
2. Spin wheel slowly and look for side-to-side
wobbles as the rim travels between the
brake pads.
3. If the rim wobbles to the right, tighten
the left side nipples within the area of the
wobble ¼ turn. If the rim wobbles to the left,
tighten the right side nipples within the area
of the wobble ¼ turn. Spin the wheel slowly
and note the impact. Repeat as needed to
remove the wobble. Note: If further tighten-
ing could cause damage to the nipple or
create uneven spoke tension, similar results
can be obtained by loosening the opposite
side nipples ¼ turn within the area of the
wobble. For example, if the rim wobbles
to the right, loosen the right side nipples
within the area of the wobble.
4. Repeat procedure on other wobbles until the
wheel runs straight through the brake pads.
CL-1 Synthetic Blend Chain Lube
with PTFE
Using a proprietary blend of oils and PTFE,
CL-1 works great in wet or dry conditions. It
penetrates, reduces friction, prolongs com-
ponent life, displaces moisture, and protects
parts from rust and corrosion. Apply a drop
to the inside of each chain link; then wipe off
excess with a rag. Also works great on brake
and derailleur pivot points.
primary
cradle
tight link
cradle
2
1
3
