KENT BMX, Сборка

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MAINTENANCE & RE
PAIR
CHAIN
Inspection: The chain must be kept clean, rust free and frequently lubricated
in order to extend its life as long as possible. It will require replacement if it
stretches, breaks, or causes inefficient gear shifting. Make sure that there are
no stiff links, they must all move freely.
Lubrication
The chain should be lubricated with light oil at least every month, or after use
in wet, muddy, or dusty conditions. Take care to wipe off excess oil, and not
to get oil on the tires or rim braking surfaces.
Adjustment and Replacement
On derailleur geared bicycles the rear derailleur automatically tensions the
chain. To adjust the chain on single speed freewheel, coaster hub braked or 3-speed hub geared bicycles:
1. Loosen the rear axle nuts (and coaster brake arm clip if fitted) and move the wheel forward to loosen, or backward to tighten,
in the frame.
2. When correctly adjusted, the chain should have approximately 10mm of vertical movement when checked in the center
between the chainwheel and rear sprocket. Center the wheel in the frame and re-tighten the axle nuts after any adjustment.
Chains require a special tool to fit and remove chain links, or to change the length. We recommend that you go to a local
bicycle mechanic to replace or change the length of your chain.
FREEWHEEL
Inspection: Like the chain, the freewheel must be kept clean and well lubricated. If the chain has
become worn and needs replacing, then it is likely that the freewheel will also have become worn
and should also be replaced. Take the chain off the freewheel and rotate it with your hand. If you
hear a grinding noise or the freewheel stops suddenly after spinning it, it may need adjustment or
replacement. Such action is beyond the scope of this manual and you should consult a local
bike mechanic.
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