How To Change A Chain On A Mountain Bike

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How To Change A Chain On A Mountain Bike
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Secure Your Bike
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Check For A Master Link
A master link is a special link in your bike
chain that has a pin/slot configuration that will
allow you to easily remove your chain from the
bike. Two popular kinds of master link are Connex
and SRAM Powerlink. Knowing where your master
link is ahead of time will make chain replacement
go smoother.
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Position your chain
This is especially important if you have a master
link. Removing a master link that's positioned on
the teeth of the chain ring or a gear can be very
difficult. Positioning the master link so it is
suspended at the midpoint between wheels will be
easiest.
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Clean the chain
Bike chains are greased to improve their
performance and prevent the elements from causing
the chain the degrade quickly. It's likely that a
layer of gunk has accumulated on your chain.
Clean this with a rag that's been dampened with
degreaser and wipe free the buildup and grease.
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Remove the chain
Now that the chain is in position, you can remove
it. With a master link, you can do this by
squeezing both ends of the master link inwards
with your hands or a pair of small pliers so the
pin comes out of its slot and the link comes
apart, freeing your chain.
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Avoid using failed chains as replacements
Chains generally fail because they have reached
their limit or been put under too much stress.
Replacing a failed chain on your bike could
result in an even more severe failure down the
road. To prevent injury to yourself or your
mountain bike, you should buy a new chain instead
of reusing old ones.
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Measure your replacement chain
It's important that you only use the kind of
chain intended for your bike. For example, an
11-speed bike will use an 11-speed chain. Hang
your old bike chain so it dangles freely and do
the same with your new chain beside the old one.
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Insert your chain into the gear mechanism
For more complex mountain bike, you may need to
consult the picture you took of how the old chain
feeds through the gear mechanism to do this
properly. Simple mechanisms may be more
intuitive. Pull the chain through the entire
drive train until both ends terminate at either
the top or bottom midpoint between your wheels.
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Attach the loose ends of your chain
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Remove Extra Links From The Chain, If Necessary
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Prevent chain binding for full suspension bikes
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Test your chain
Reposition your bike back on its rack and move
the pedals manually with your hands to run the
chain through the drivetrain of your bicycle. The
chain should move smoothly. If you notice stiff
links, these are often caused by a protruding
link pin, and can be fixed by resetting the pin
with your chain tool and pliers.
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Evaluate the wear on your chain
The most reliable way of doing this is with a
chain wear indicator, which you should be able to
purchase at your local bike shop or maybe even at
a hardware store. You'll have to attach the
indicator between the links of your chain and
follow the directions on it to interpret its
reading.
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Try to join the ends of your chain to test wear,
alternatively. 
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Familiarize yourself with the drivetrain
The drivetrain of your bike is the part that
transfer the energy you put into the pedals
through the chain to your gears to move the
wheels. You'll want to pay extra close attention
to how the chain feeds into the gears. 
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Thank You For Your Time
Eastman Industries Limited is a dominant
manufacturer, exporter supplier of a variety of
bicycles, components and accessories, suitable to
both conventional contemporary bicycles,
established in 1982. Eastman Industries Limited
has stood for innovation, quality, performance
and outstanding service for more than 30 years.
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