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 derailleurs, 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 drivetrain side of the bike. The
rear lever should have a tightly closed handle that runs parallel
to the chainstay 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
galvanically 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.