Mongoose MULTI SPEED - Page 62

©2011
MAINTENANCE
Problem
Gear shis not working properly
Slipping chain
Chain jumping o freewheel
sprocket or chainring
Constant clicking noises when pedaling
Possible Cause
• Derailleur cables scking/
stretched/damaged
• Front or rear derailleur
not adjusted properly
• Indexed shiing not adjusted properly
• Excessively worn/chipped chainring
or freewheel sprocket teeth
• Chain worn/stretched
• S link in chain
• Non compable chain/
chainring/freewheel
• Chainring out of true
• Chainring loose
• Chainring teeth bent or broken
• Rear or front derailleur side-to-side
travel out adjustment
• Cross chaining and shiing under load
• S chain link
• Loose pedal axle/bearing
• Loose boom bracket axle/bearings
• Bent boom bracket or pedal axle
• Loose crankset
Remedy
• Lubricate/ghten/replace cables
• Adjust derailleurs
• Adjust indexing
• Replace chainring,
sprockets and chain
• Replace chain
• Lubricate or replace link
• Seek advise at a bicycle shop
• Re-true if possible, or replace
• Tighten mounng bolts
• Repair or replace chainring/set
• Adjust derailleur travel
• Lubricate chain/adjust chain link
• Adjust bearings/axle nut
• Adjust boom bracket
• Replace boom bracket axle or pedals
• Tighten crank bolts
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