Owner`s manual

105
CRANK SET
The crank set refers to the bottom bracket axle and bearings, the crank
arms, and chainrings.
Your bike may be fitted with either a one piece crank, where the crank
arms and bottom bracket are a single component, or a standard crank
set, where each crank arm bolts onto the bottom bracket axle using
nuts or bolts. The one piece system is simpler and requires less
maintenance, while the standard crank system requires a little extra
care.
Never ride your bike if the cranks are loose. This may
be dangerous and will damage the crank arms beyond
repair.
Inspection
The crank set should be checked for correct adjustment and tightness
every month. Crank nuts must be kept tight, and the bottom bracket
bearings must be properly adjusted. Remove the chain and try to move
the cranks from side to side with your hands. The cranks should not
move on the axle, and there should be only very slight movement in the
bottom bracket. Next, spin the cranks. If they don't spin freely without
grinding noise, then adjustment or lubrication will be needed. Also
check that there are no broken teeth on the chainrings, and wipe off
excess dirt and grease that may have built up on them.
Fixed Cup
Ball Bearing
Lockring
Adjusting
Cup
Axle
Standard Bottom Bracket Assembly (Cotterless)
Standard Crank Set
Crank Bolt
Dust Cap
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