havent a clue but have wondered the same myself. Ive never gotten around to trying out changing my 9 spd gevenalle bike to 10 spd even though I have some 10 spd microshift thumb shifters kicking around.
In the times Ive made half hearted attempts to get proper info, it seems to me that people have gone to 10 with 9 spd cranksets with no issues, but good luck finding some reliable examples.
the fd wont be a problem, no reason for it to be, given the friction aspect especially.
get back here if and when you find confirming info on the 9 spd crnaks with 10 chains
i absolutely will. Just waiting on the mail. I don’t know if you’ve seen Sheldon Browns speed compatibility article (I’m guessing you have), but I believe that it’s explained quite properly and there is no reason it shouldn’t work.
when I am done (likely the beginning of June I’ll have the shifters set up. I will very certainly confirm for you “yay or nay” when I finish. That way perhaps you can make your conversation with just a bit more confidence, a cassette, a chain, and elbow grease, because that is all it would take!
By the way, great choice with the Gevenalles. How do you like them? I’m anxious to try. I had the 9 sp M.S. bar ends and Tektro levers on this thing stock, but love that they are together with these. Super slick, and different.
Stay tuned for valuable, reliable confirmation. What kind of bike would you be converting and what parts are your DT comprised of?