max cog on a tiagra 9speed rear derailleur? rd-4400 short cage..
07-10-10, 06:36 PM
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max cog on a tiagra 9speed rear derailleur? rd-4400 short cage..
came across this and thought about putting it on my beater town cx/commuter. Whats the biggest cog I can go on this? 27t?
07-10-10, 06:44 PM
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Shimano specifies a 27T large cog as the maximum for their road rd's but experience says that up to 30T is almost always doable. Your short cage rd will accept the same maximum cog as a long cage, it just won't wrap up as much chain so the total gearing range can't be as large.
07-10-10, 11:09 PM
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Shimano specifies a 27T large cog as the maximum for their road rd's but experience says that up to 30T is almost always doable. Your short cage rd will accept the same maximum cog as a long cage, it just won't wrap up as much chain so the total gearing range can't be as large.
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