Originally Posted by
masi61
Thanks for your reply. A 40t or 42t low sprocket sounds way to low for the road gearing that I will be needing. It’s too bad that they don’t make a tight ratio MTB 11 speed cassette like a 12-25 range.
That would not fit on a 10 speed freehub body, the reason 11 speed MTB cassettes can fit a standard 10 speed freehub body is because the larger cogs will clear the spokes. The larger the cog on the back the further away from the spokes the chain will sit. Shimano makes an 11 speed 105 R7000 cassette that fits on a 10 speed freehub body, it's an 11-34.