Originally Posted by dauphin
turns out that I don't have that option regarding an 11-32 cassette according to my LBS. They say that it would work if I was running nine speed, but mine is Shimano 105 ten speed. Don't quite understand that.
The width of the chain between the nine and 10 speed are different, and the systems can be very finicky. So, you really shouldn't mix components between these two drive trains. It is possible that there is not a cog made for your system that goes up to 32 teeth. I don't know this for sure, but the largest I've seen in my area's LBS is one that goes up to 28 teeth. Perhaps others know more about this.
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