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Page 2 of 2 Owner’s Manual Supplement TRACK BIKES - 11/17/14
TECHNICAL INFORMATION
Adjusting Chain Tension & Rear Wheel
Installation
Track bike chain tension is set by moving the rear hub back and forth in
the slotted, “track” rear dropouts. This track bicycle is equipped with track
wheels and hubs. These hubs are equipped with axle nuts, not quick release
mechanisms.
When the cog (or the chainring) is changed in size, the chain tension will need
to be adjusted, as there is no rear derailleur to take up or release excess chain.
Before changes to the cog and/or chainring are made, the rear wheel axle nuts
must be loosened and the rear wheel removed.
Once the cog and/or chainring is changed per the component manufacturer’s
instructions, the chain tension must be set. This is done by sliding the rear
wheel back and forth in the dropouts until the chain tension is correct and the
wheel is centered between the seat stays and the chain stays. See Fig. 1. The
chain tension is correct when there is approximately 1.0 – 1.5cm of vertical
chain deflection between the chainring and rear cog.
Figure 1
About the Rear Dropout Plates
Do not remove the metal plates fixed to the dropouts. These plates are in
place solely for prolonging the life/usability of the aluminum dropout. The
plates resist wear caused by the axle nut and provide a smooth hard surface
to accurately place the wheel. A more accurate torque on the axle nuts can
also be achieved with these backing plates. The plates are shown removed
below for clarity.
Plate
Screws
Loctite 242
Dropout
(drive side)
Figure 2
Front Wheel Installation
This track bicycle has a track front wheel equipped with axle nuts, not a quick
release mechanism. The front wheel must be properly installed. To install the
front wheel, first be sure the hub axle is all the way up into both dropouts.
Then tighten by holding one nut with a wrench while tightening the other 240
In-Lbs (27 Nm) with a torque wrench. Switch the tools to the other side and
repeat.
See also Section 4 A 3 of the Cannondale Bicycle Owners Manual, entitled
“Removing and Installing Bolt-On Wheels.
WARNING
RIDING WITH IMPROPERLY ADJUSTED WHEEL RETAINING NUTS
CAN ALLOW THE WHEEL TO WOBBLE OR DISENGAGE FROM THE
BICYCLE, CAUSING DAMAGE TO THE BICYCLE, AND SERIOUS
INJURY OR DEATH TO THE RIDER.
Therefore, it is essential that you:
1. Ask your dealer to help you make sure you know how to
install and remove your wheels safely.
2. Understand and apply the correct technique for installing
your wheel with axle nuts.
3. Before each ride, check that the wheels are securely bolted
in place. This is done by checking that the nuts are properly
torqued.
Changing a Rear Cog
Track bikes have a fixed gear—One set gear ratio, no freewheeling, and no
coasting. Track racers change cogs or chainrings to alter gearing. The cog is
threaded onto threads on the rear hub in a clockwise (standard right hand
thread) direction. A lock ring with counter clockwise (left hand) thread is used
to retain the cog and resist backpedaling force. See Fig. 3. A cog remover /
chain whip tool is used to tighten the cog, and a lock ring “hook” spanner/
lock ring spanner wrench is used to tighten the lock ring. You will need tools
specifically made to fit your components.
Figure 3
Increase Tension Decrease Tension
Lock Ring
Cog
2


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