The spacing between the chainrings on the XD is for 7/8sp chain. If you are using indexed shifting for 10sp with 10sp chain, then the front derailleur won't push the chain far enough to make the shift. You could get around this if your front shifter is friction, but I imagine there is a risk of the skinnier chain getting wedged between the chainrings.
In my experience, if you are using 10sp, especially with STI, you really want to make sure your drivetrain components match. Actually, come to think of it, 9sp STI is pretty bad on the XD cranks, too, but friction makes it better. Speaking of STI, the latest versions are, IMO, much better than earlier ones. Uglier, too, but they work great. You could brush off this topic and say "7-speed is plenty good for me", which is true for most of us, but SRAM and Shimano are pushing hard to make 10sp the standard for their mountain groups. There will soon be many more gearing and shifter/derailleur options for 10sp than there will be for 7/8/9sp. Personally, I run whatever I have lying around, and have no preference as long as I can make it work on my bike. I imagine I'll be using something 10sp in the not-too-distant future. On Aug 18, 10:59 pm, Jan RBW <jan....@gmail.com> wrote: > Has anyone tried 10 speed systems with Sugino XD2 cranks? > > Rivendell's web page says: "Works with everything but 10 (or more--nice one > campy) speed cassette drive trains." > > Why wouldn't it work with 10 speed? Is the 10 speed chain too narrow? -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.