Possible Cause Remedy
83
Problem
Gear shifts not working properly
Slipping chain
Derailleur cables
sticking/stretched/damaged
Front or rear derailleur not adjusted
properly
Indexed shifting not adjusted properly
Lubricate/tighten/replace cables
Adjust derailleurs
Adjust indexing
Excessively worn/chipped chainring
or freewheel sprocket teeth
Chain worn/stretched
Stiff link in chain
Non compatible chain/chainring/
freewheel
Replace chainring, sprockets and
chain
Replace chain
Lubricate or replace link
Seek advice at a bicycle shop
Chain jumping off freewheel
sprocket or chainring
Chainring out of true
Chainring loose
Chainring teeth bent or broken
Rear or front derailleur side-to-side
travel out of adjustment
Re-true if possible, or replace
Tighten mounting bolts
Repair or replace chainring/set
Adjust derailleur travel
Constant clicking noises when
pedaling
Stiff chain link
Loose pedal axle/bearings
Loose bottom bracket axle/bearings
Bent bottom bracket or pedal axle
Loose crankset
Lubricate chain / Adjust chain link
Adjust bearings/axle nut
Adjust bottom bracket
Replace bottom bracket axle or
pedals
Tighten crank bolts
Grinding noise when pedaling Pedal bearings too tight
Bottom bracket bearings too tight
Chain fouling derailleurs
Derailleur jockey wheels
dirty/binding
Adjust bearings
Adjust bearings
Adjust chain line
Clean and lubricate jockey wheels
CO")Copyright 2000 Pacific Cycles
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