Instructions / Assembly

6 Maintenance
52
Problem Possible Cause Remedy
Slippingchain • Excessivelyworn/chippedchainringorfreewheelsprocket
teeth
• Chainworn/stretched
• Slinkinchain
• Noncompablechain/chainringfreewheel
• Replacechainring,sprocketsandchain
• Replacechain
• Lubricateorreplacelink
• Seekadviceatabicycleshop
Chainjumpingo
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
• Crosschainingandshiingunderload
• Re-trueifpossible,orreplace
• Tightenmounngbolts
• Repairorreplacechainring/set
• Adjustderailleurtravel
Constantclicking
noiseswhen
pedaling
• Schainlink
• Loosepedalaxle/bearing
• Looseboombracketaxle/bearings
• Bentboombracketorpedalaxle
• Loosecrankset
• Lubricatechain/adjustchainlink
• Adjustbearings/axlenut
• Adjustboombracket
• Replaceboombracketaxleorpedals
• Tightencrankbolts
Grindingnoisewhen
pedaling
• Pedalbearingstooght
• Boombracketbearingstooght
• Chainfoulingderailleurs
• Derailleurjockeywheelsdirty/binding
• Adjustbearings
• Adjustbearings
• Adjustchainline
• Cleanandlubricatejockeywheels
Freewheeldoesnot
rotate
• Freewheelinternalpawlpinsarejammed • Lubricate.Ifproblempersists,replace
freewheel
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