36
Derailleurs, Chain rollers and rear casette.
The shifting is not as
crisp as it used to be
The derailleur may be slightly out of adjustment. You can try tweaking the
shifting my twisting the handlebar unit adjustment barrels, or that on the
rear derailleur. If this adjustment does not help, check that the casette is well
fastened to the freewheel body of the hub. If its loose, take your bicycle to your
dealer. If not, you may need to make a larger adjustment by loosening the bolt
on the derailleur and tighteningen it. Another idea would be to check the derail-
leur cables for grime, kinks or wear and replace as nescecary.
When you stop
pedalling and coast,
the pedals want to
continue turning at the
chain bunches up
The freewheel mechanism of your hub has siezed up. Try spraying a light lubri-
cant into it and allowing it to soak in, If this does not help, take your bicycle to
the nearest dealer for further help.
When riding there is a
slipping feeling in the
chain or a noise, as if
the chain is jumping
the cogs.
Is your derailleur properly adjusted? If it is and the problem occurs in one
particular gear, It may be your favorite gear and has become worn. Inspect the
chainwheel or cog in question. If the teeth resemble shark ns, it will need top
be replaced. If the skipping happens no matter what the gear, you most likley
have a frozen link. BAckpedal the gear system andd keep your eye on the chain
as it passes over the pulleys of the rear derailleur. the chain will most likey have
a stiff link, that once found will need to be grabbed at either side by pliers and
forced to bend to loosen it up. If there is no siezed link, visit your dealer.
Pedaling feels rough
and the bike is hard to
propel even thought
the tires are pumped
up and the brakes do
not drag.
Your chain has probaly become so dirty or dry that it is effecting the cycling
efciency. Clean and relube the chain. next check the rear derailleur pulleys
and chain rollers on the bike and lube or replace as nescecary. If the problem
continues, try overhauling your hubs.
The derailleur refuses
to shift to the largest
or smallest cog.
If the cable is fully tensed (large sprocket) or fully slack (smalles sprocket) The
derailleur limitation screw may need to be adjusted. Please refer to the derail-
leur information, included i nthe info package. If not, you may need to play
with the derailleur adjustment barrels on the handlebars or rear derailleur.
The chain is always a)
black and grimy or b)
squeaky
You are probably using a) too heavy a lubricant or b) too light a lubricant for
your normal riding conditions. Please visit your dealer or local bike store and
ask for thier advice..
The chain runs rought
and nothing iseem to
do will x it.
Your chain may be worn out or simply up to replacement. If you have just
replaced the rear casette or front chainrings, keep in mind that a drivetrain as a
whole wears together, and a new set of cogs may well not intermesh with the
old chain properly. Ask your dealer or local bike store
It has become
incresingly difcult
to change gears over
time
You may need to clean your cables, or even replace them. Remove the inner
cables, wipe them down and drop a little light grease into the outer cables, then
replace the inner cables.
The rear derailleur
makes a 'grrrrr'sound
when in the large cogs
in the rear.
You may need to adjust the derailleur height clearance bolt, found at the rear of
the derailleur, behind the frame nearby the attachment bolt. See the manufactur-
ers manual.
37
Derailleurs, chain rollers and casette, contunued
The chain keeps on
falling off the small-
est sprocket, at either
the front or rear.
Are you riding on rough terrain with both derailleurs on the smallest cogs? Is
your chain set up to the correct length? See directions on page 16. If this is
not the case, you will need to screw in the lower derailleur travel limitation
screw. See the information pack from the derailleur manufacturer.
The chain keeps
bunching up at one of
the rollers.
Is the chainline unobstructed? Maybe the chain retension bracket (present on
some pulleys) needs to be spun further around, in the same direction as the
chain is travelling.
Pedals
The pedals squeak or
grind during riding
You will most likley need to dissassemble the pedals and relubricate them.
The pedals feel wob-
bly or rough
The pedals may need replacement bearings. See whether the pedals can be
adjusted or tightened. Ask your dealer or local bike store for assistance.
You are having
problems getting
into or out of click in
pedals.
Check that the spring tension is not set too high and that the cleats on your
shoes are properly aligned with the pedals. Read the manufacturers directions
or go to your dealer for help. Badly adjusted pedals can lead to severe knee, hip
and back problems.
Your pedals are
releasclick in ing you
unexpectedly.
You may need to tighten the spring tension on the pedals. If this is not it, the
cleat on your shoe may be worn out and will need replacing if this si the case.
Ask your dealer for advice.
The pedal wobbles
strangely whilst
pedalling
Check that the cranks are properly tightened to the bottom bracket. Check
that the pedal is securely and properly fastened to the crank.If this is not the
problem, maybe you were recently involved in a crash which may have bent
the pedals? If so you may need to replace the pedal (axles). Do this promptly as
such occilations can cause bodily damage.
I cant get the pedals
onto the cranks! I
dont know why they
wont go on!
Are you threading the right pedal into the right and left pedal into the left
crank? Pedals have opposing threads on the spindles that prevent them from
loosening themselves during cycling. Otherwise check the state of the thred on
the pedals or crank.
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