Join Date: May 2004
Location: Orange County, California
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10 speed cassette on 9 speed bike
I'm in the process of getting my junior track racer on the road. The bikes I'm looking to get her are Shimano 9 speed. The problem is the stock gearing is way to big for juniors. Ultegra 10 cassettes can be configured to junior gearing. Small cog can be 13, 14, 15 or 16. According to the Shimano website, only ultegra has this option. I also see that dura-ace 10 cassettes are 9 speed free hub compatable.
Finally my question, will the ultegra 10 fit on a 9 speed hub and if so, with 9speed shifters what cog would I lose, the big or the small? I also assume I would need to change out the chain.
I would rather do this than block out cogs, if it is possable.
Thanks for any help!