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For safety, be sure to read
these instructions, and follow
them for correct use.
WARNING
• Do not press the FLIGHT DECK (cycle computer) switches or the
shift timing adjustment dial (see p.8) while riding. Holding the
handlebars with only one hand while riding can cause instability
and make you lose control of your bicycle and have an accident.
Stop the bicycle before operating any of the switches.
• Do not pay excessive attention to the computer data while
riding, otherwise you might have an accident.
• Do not disassemble the front suspension fork, otherwise the
outer tube and the inner tube will come apart and serious
injury may result.
• Use tires with an outside circumference
of less than 730 mm, so that the tire
does not touch the bridge of the front
suspension fork.
If a fender has been fitted, make sure
that the tire does not touch the fender
when the tire is installed.
• Install the handlebar and the handlebar stem correctly while
referring to the Service Instructions for these parts. If they are
not installed correctly, you might lose control of your bicycle
and have an accident.
• The FS-C810 does not include a hanger on the front suspension
fork, and so only cantilever brakes that are designed to be
installed to the front suspension fork without a hanger can be
used.
• Keep used batteries out of the reach of children, and dispose of
them in accordance with local waste regulations. If batteries are
swallowed by mistake, seek medical advice immediately.
• Use a neutral detergent to clean the chain. Do not use alkaline
or acidic detergents that are designed to remove things such as
rust, as they can damage the chain and cause the chain to
break.
• 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.
• Check that the wheels are fastened securely before riding the
bicycle. If the wheels are loose in any way, they may come off
the bicycle and serious injury may result.
• Check that the lamp illuminates normally when riding at
nighttime.
• Read these Technical Service Instructions carefully, and keep
them in a safe place for later reference.
CAUTION
• The hub dynamo generates an extremely high voltage. Never
touch the connection terminal of the hub dynamo directly while
riding the bicycle or while the wheel is spinning. Touching the
dynamo terminal may cause an electric shock.
• The DH-3NB1-QR and DH-3RB1-QR hub dynamos are for use
only with the NEXUS Di2. Do not use them with any other
bicycles. In addition, do not use any hub dynamos other than
these two with this bicycle.
• This system is an automatic gear shifting system in which the
shifting points are determined by the speed of the bicycle (the
rotating speed of the wheels). Because of this, gear shifting can
occur independently of the rider's intentions, and so shocks may
be felt during shifting. Make sure that you understand and
become accustomed to these shifting characteristics before
using the system extensively.
Note
• This system operates by automatically transferring power
generated by the front hub (hub dynamo) to components such
as the lamp and derailleurs.
When starting to ride the bicycle at night, the lamp will be dim
for several seconds until stable power is generated, and it will
suddenly dim after shifting gears. This is not a failure of the
system.
• When sufficient power is not being generated at times such as
immediately after starting to ride, movement of derailleurs and
suspension may be limited and the system may not accept
operator instructions.
Refer to the explanations of other functions for details.
• Check the degree of parallel of the front fork end. If the front
fork end is severely out of parallel, deformation of the hub axle
may cause noise from an obstruction inside the hub dynamo to
be generated.
• Install the hub dynamo to the front fork so that the side with
the connection terminal is on the right when facing toward the
front of the bicycle. If the side with the connection terminal is
facing toward the left, the hub dynamo may not turn properly
while riding.
• For roller brake specifications, read the service instructions for
Bridge
the Front M Brake System together with these instructions. (DH-
Tire
3RB1 hub dynamo)
• Use a 6 V / 2.4 W bulb for the front lamp and a 6 V / 0.6 W lamp
for the tail lamp.
• If the lamp is frequently turned on when riding at high speed
ranges, it will shorten the operating life of the bulbs.
• For correct operation during gear shifting, a small amount of
noise might be generated between the pawl inside the hub and
the ratchet.
• Do not disassemble the internal hub mechanism.
• Do not apply any lubricant to the inside of the hub, otherwise
the grease will come out and it may cause problems with
conductivity.
• The hub dynamo will cause the turning of the wheel to become
slightly heavier because of the magnet inside the hub.
• When shifting is in automatic mode, operating the shifting
switch will not shift the gears.
• Please use the recommended gears shown below in order to
properly activate timing for automatic shifting.
Front Gear (FC-NX60)
Rear Gear
* Set gears so that front to back gear ratio is 2 – 2.1.
• Do not clean the bicycle with high-pressure sprays. If moisture
gets into the components, it may cause operating problems or
rust.
• Do not disassemble any of the units, otherwise they may not
operate correctly.
• A beep will sound when gear shifting occurs.
• The various units are designed to be water-resistant so that they
can be used for riding in wet weather. However, they should
not be immersed in water.
• Do not leave the FLIGHT DECK exposed to extremely hot
weather, and do not subject it to shocks.
• To clean the units, wipe with a dry cloth or a cloth that is lightly
moistened with neutral detergent. Substances such as thinner
will damage the unit surfaces.
• Roughly 1 minute after stopping the bicycle, the energy saving
function is activated and the liquid crystal display turns off. The
backlight turns off about 5 seconds after stopping the bicycle.
• 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.
Recommended Gear Combinations
33T
38T
16T
19T
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