Short vs Medium Cage Derailleur - Chain Length
#1
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Short vs Medium Cage Derailleur - Chain Length
I will likely need to get a new derailleur for my road bike. Right now, it has an 11-30 cassette with a short cage derailleur. I would like to get a middle cage derailleur because in the future I would like to get an 11-32 or 11-34 cassette. I was wondering if I need to lengthen my chain if the only immediate change I'm making is switching from a short to a middle cage derailleur? Thanks
#2
climber has-been
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I will likely need to get a new derailleur for my road bike. Right now, it has an 11-30 cassette with a short cage derailleur. I would like to get a middle cage derailleur because in the future I would like to get an 11-32 or 11-34 cassette. I was wondering if I need to lengthen my chain if the only immediate change I'm making is switching from a short to a middle cage derailleur? Thanks
The Shimano chain sizing instructions for wide-range cassettes is to set the chain on the big-big combination, without running the chain through the derailleur. Then add one set of links. No mention of the type of derailleur (short or long cage).
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You will need a new chain eventually anyhow, so why not just get a chain to have on hand if you find out the length of the new DR cage does make your existing chain a less than appropriate length?
#5
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I use the chain length formula at parktool.com.
If 4T is added, 1 inch of additional chain length is needed.
If 4T is added, 1 inch of additional chain length is needed.
#6
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