Originally Posted by AZORCH

I'm running the 1056 with 8 speed on my Bob Jackson and it shifts fine. There's a note on VeloBase about the 1050: "This is one of my favorite indexing rear derailleurs for up to 8 speed cassettes (it will probably handle 9 speed too but I only use 6,7, and 8 speed cassettes). They will easily handle a 32T rear sprocket with 48-38T chainrings. The steel pulley cage adds a little weight but the added rigidity makes for smooth shifts. Only problem is finding the replacement sealed floating top pulleys." (I am a little doubtful about the 32t sprocket myself, and I think 9 speeds may be a bit of a dream too.)