Bike Fit and Comfort
Position
your seat height, so that when you sit on the bike and have your
foot at the lowest point in the pedal stroke, there is still a slight
bend in your
knee. Full leg extension will cause your hips to rock when you pedal.
Too
much bend in your knee will keep full pedal power from getting to the
pedals. And, incorrect positioning will lead to discomfort and leg
cramps
over long rides. Position the seat forward or back, so your knee is
directly
over the pedal when you have your foot and pedal in the "3 o’clock"
position. Handlebars should be approximately shoulder width wide and be
positioned at about the same level as your seat. Maintain a slight bend
in
your elbows when riding to absorb shock. Also, a change in stem length
may be helpful. Your local bike shop has a selection of different sized
stems to get that "perfect" fit. To avoid hand numbness over long rides,
keep your wrists straight and change hand positions occasionally. Keep a
firm, but relaxed grip and try a set of bar-ends for additional
positioning
options.
Braking
Performance
Glazed,
hardened, dirty, or misaligned brake pads account for nearly all
"loss of braking power" problems. Keep the surface of your brake pads
clean and fresh by using sandpaper or steel wool to scuff away any
debris,
and hardened glaze. Check the alignment. The pad should be "toed in"
about 1/8" to first make contact with the rim at its front half.
Additionally, the
pad should contact the center of the rim. The pad should never rub the
tire,
or hang off the rim. In general, clean and inspect your brake pads every
month. Brake pads are inexpensive and relatively easy to replace. You'll
be
amazed at the difference new brake pads make. Regularly clean your rims
with EcoTech 2 Degreaser. Your pads will work better and last longer.
Bottom
Bracket
Bottom
brackets, (B.B.s) are the bearing and spindle assemblies that your
pedal crank arms spin upon. Because of their low and central location,
they
are constantly being exposed to the worst of contaminants. Many B.B.s
feature sealed bearing assemblies. However, it does help to keep an eye
on their outer shields and keep them as clean as possible, by wiping
away
any crud with a rag. Also, do not spray pressurized water at the
shields.
Creaking
Bottom Brackets
This
annoying trait can be caused by a variety of things. All require special
tools to fix and are best left to a professional mechanic.
Note Some B.B.s utilize semi-sealed or non-sealed bearing assemblies.
They should be cleaned, inspected and re-greased about every 6 months.
This job requires special tools, so don’t cheat and use a hammer and/or
pipe wrench. You’ll end up ruining your bottom bracket and they’re not
cheap to replace.
Lubricating
Your Cables
Smooth
operating cables are the life lines that keep your braking and
shifting system working optimally. There are a variety of ways to
lubricate
your cables, from removing them, to just shooting a little lube into the
ends
of the cable housings. Depending on how much wet weather riding you do,
your cables will require different amounts of attention. You should
inspect
and lube, if necessary, every 4 - 6 rides. For quick maintenance, squirt
or
drip a "dry" style lube into the open ends of the cable housings.
Note When it is time for a thorough cleaning and re-lubing of your
cables,
a trained mechanic should tackle the job. Unless you are experienced in
removing your own cables, you can easily spend a few hours getting
everything readjusted properly.
Lubing Your
Derailleurs
Your
derailleurs are just as important as your chain, in helping to deliver
those crisp, exact shifts that make cycling a true joy. The derailleurs
shift
your chain by using a system of springs and pivots. It is important to
keep
these springs and pivots well lubricated. They will require a shot of
lube
every 5 - 7 rides. Lubing your derailleurs is easiest when you flip your
bike
upside down. This provides better access.
Note: Gears (sprockets) do not require any special lube application. The
gears receive sufficient lubrication from the chain, as it runs through
them.
Excessive lubricant on the gears will attract dirt and eventually
degrade the
performance of your drivetrain components.
Creaking Stem
Sometimes,
the handlebar stem will "creak". This is usually caused by one
of two things: either dirt that has worked it’s way down between the
stem
and the fork’s steerer tube or the stem has come slightly loose. To fix
this,
loosen the stem, remove it from the steerer tube, and clean it using
Citrus
BioSolvent or EcoTech 2. Reassemble and tighten to correct torque
specification.
Note Some high-end stem mounting designs may require special tools or
unique reassembly torques. Check with your local shop if you have any
questions.
Caring for
Front and Rear Hubs
Some hubs
have "open" bearing assemblies, with only a "dust shield"
between them and the elements. You’ll need to routinely inspect, clean
and
re-grease these type of hubs. In general, inspect, clean and re-grease
hubs every 4 months. Carefully disassemble the hub and clean with Citrus
BioSolvent or EcoTech-2. Inspect all components and particularly look
for
pits, cracks, or flat spots in the ball bearings and race surfaces.
Generously apply Finish Line Teflon-Fortified Bicycle Grease to the
bearing and race surface, then reassemble. Adjust so bearings run smooth
and free, but allow no side-to-side or up-and-down play.
Note Many hubs now feature "sealed bearing assemblies". Just keep their
outer seals clean with an occasional rag wipe. Don’t spray water or
degreaser into your bearings. Properly cared for, sealed bearing hubs
will
last a long time.
Lubing Your
Brake & Shift Levers
All brake
and shifter levers work by using springs and ratchets that arc on
pivots. You will need to lube your levers every 6 months.
Cleaning: Your levers will require no more than a quick cleaning. A
squirt of
bicycle degreaser, a quick scrubbing with a brush, and/or wipe with a
rag,
should do it. If mud and sand have worked its way into the heart of your
brake and shifter levers, it is recommended that you have a trained
mechanic tackle the job. Disassembly and reassembly of these components
can be quite complicated.
Lubing: Run your levers through their full range of motion while
squirting a
little lube into the spring and ratchet mechanism. Place a drop of lube
onto
the pivot and work it into the joint.
Note Like your derailleur, it may be easier to access the lube points
on
your levers by turning your bike upside down.
Quick-Release
Position
your front and rear wheel quick-release levers opposite the drive train side of the bike. The rear lever should have a tightly closed
handle that runs parallel to the chain stay tube. The front lever should
be
pointed up, tucked next to the fork. These positions will prevent a
glancing
blow, from a trailside obstacle, from accidentally opening the levers.
If you’re new to quick-release axles, make sure your bicycle dealer shows you
how to properly use and tension the levers.
Grease your
Seat Post
Apply a thin
layer of Finish Line Teflon-Fortified Grease to your seat post,
where it slides and mounts into the frame. This will keep the seat post
from galvanic ally cold-welding itself within the frame.
Seat Height
Adjustment
Use a low
seat adjustment for more control during fast downhill riding. Use
a high seat adjustment (with a slight bend in the knee) for efficient,
long
distance pedaling.
Resource: Finish Line Technologies, Inc. on the web
www.finishlineusa.com
