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Step 1
Lean bike on a wall or place in a repair stand.
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Step 2
Use a link removal tool to place the chain in the channel section opposite the small crank.
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Step 3
Position the chain in the tool so that the tool's pin matches up with a pin in one of the chain's links.
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Step 4
Turn the tool's small screw crank so that it begins to push out the pin in the chain.
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Step 5
Push out the pin, unscrew the tool and take the chain out of the channel. The chain should separate.
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Step 6
Unthread the chain from the gears and set aside.
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Step 1
Thread the new chain through the gears. Be sure to run it the proper way through the derailleur, through the mechanism that shifts the front gears, around the rear of the bottom pulley and over the front of the top pulley.
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Step 2
Thread the other end of the chain through the front derailleur and over the front sprockets. (The front sprockets are the front gears, near the pedals.) The chain should pass through the "cage" of the front derailleur - the rectangular metal section that hangs over the front sprockets.
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Step 3
When the chain is threaded over the front and back gears, place the two ends together in the link removal tool.
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Step 4
The new chain should have a pin already pushed partway out. If it does not, push one end of the new chain in the link tool and press the pin most of the way out.
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Step 5
Slip the links together, flip the tool over, and turn the tool's crank to press the pin back in. Turn eight to ten times, or until the pin seals the links together and is flush on either side of the chain. The pin should not stick out on either side.
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Step 6
Lubricate the new chain.











Comments
jlr236 said
on 7/26/2009 Replacing a chain is not difficult but you will need much more detailed instruction. The Park Tool website, www.parktool.com, has a very good repair section.
Anonymous said
on 6/30/2006 My first time I was trying to connect a chain I was trying to connect two outer links together. I couldn't figure out why the link was so tight and would not loosen. Make sure you are connecting an outer link pair to an inner link pair.
Anonymous said
on 4/12/2008 I've been taught to remove a pin from the chain only 99% of the way and leaving it attached to the last 1% of the chain (leaving enough room to separate the links but not letting it fall free of the chain), because if you push the pin all the way out, it's extremely hard to get back in.