I have a 2017 DaVinci Django mountain bike and I am planning to upgrade my cassette to a 11/46 from 11/42. I would like to buy a new KMC chain. How may links do I need?114 or 116? Maybe it’s a different number. Can you help?
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1You would need 2-3 more links than the old chain. – Daniel R Hicks Sep 03 '19 at 02:25
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https://www.youtube.com/watch?v=O0YibMDWBAw – Daniel R Hicks Sep 03 '19 at 02:26
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@Daniel R Hicks, my understanding was if you have an 8 speed cassette then you use an 8 speed chain, wouldn't the variation in length be taken up with the cage? – Dan K Sep 03 '19 at 06:06
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@DanK -- The cage will be able to "adapt" to a difference of 2-4 links, usually. Depends on the specifics of the setup. – Daniel R Hicks Sep 03 '19 at 11:51
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Generally, you would buy a chain that is "long enough" and then shorten it to the correct length. If you're adding 4 extra teeth, then presumably you would need at least 2 extra links from what you currently have. Look at Sheldon Brown's chain length article for determining the correct length.
The best technique for setting chain length is to thread the chain onto the large/large combination, without running it through the rear derailer. Mesh the two ends on to the large chainwheel so that one complete link (one inch, -- one inner and one outer half-link) overlaps. In almost all cases, this will give the optimum length.
Kibbee
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