Do others feel the same? I dont know if its my rd setup that does this, or if in fact it is the chain being on such a small diameter cog with so few teeth. Just as cross chaining can produce a sound from a chain that seems to say that it is being worked harder, it seems to me that on a 11t it does also, and I assume a 10 or 9t even more? I guess being in it for short periods is never going to be an issue, but I do know that some riders may go onto it often, and I wonder if it shortens the life of a chain?
When 9 and 10 cassettes are mentioned we're referring to the number of cogs in the cassette not the number of teeth on a cog.