How to Replace a Bike's Chain Rings
If your chain is slipping on the chain rings, it may be time for new rings. These directions apply to standard cranks.
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Instructions
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1
Remove your drive-side crank. See related eHow "Remove Bike Cranks."
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2
Clean off your cranks and chain rings with a rag.
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3
Loosen the chain-ring bolts with a 5mm allen wrench. This may take a bit of force. Be careful, and think about what you are doing - chain rings are very sharp.
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4
Remove the chain rings from the spider. [DEFINE SPIDER HERE OR IN GLOSSARY. - KF]
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Seat the new chain rings on the spider.
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Get all the chain ring bolts snug before you tighten any one of them all the way.
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Tighten each bolt securely. After you tighten one bolt, tighten the one across from it, not the one next to it.
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Consider replacing your chain when you put on new chain rings.
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Tips & Warnings
Some high-end cranks use different methods to attach the chain rings. If you have non-standard cranks, check with the manufacturer or your local bike shop before removal.
Some low-end cranks don't have removable chain rings, or have chain rings that are riveted to each other.
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Comments
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Nov 22, 2005
If you put on new chain rings it is almost a waste of money to not get a new chain. If you use an old, worn chain it will greatly speed up the wear on your brand new (and probably not cheap) chain rings. Also, a new chain is not a huge investment compared to new chain rings. It will also make the bike ride nicer.
