retrobiker273891
Retro Guru
What about 7 speed mech for 8 or 9 cassette?Yes, with 6-9 speed MTB. After that the cable pull changes and I'm not sure - the mechs require more cable and I've never tried to see if there is enough. 10 speed road rear mech is compatible with 7-9 MTB so is also going to be OK.
I don't see any need to go higher but thinking either 9-1 or 8-1 sprocket for 7 speed hub. The 7 speed mech will handle it (depending on tooth size of course)? I just had a thought that since cassettes are modular I could just buy a whatever speed greater than 7 and just take of biggest sprockets until one fits couldn't I? There is usually a massive jump in the lower gears so just play around with -1 on that side til it works? The prices of cassettes are similar for those speeds until there is a huge jump for the latest 12/13 speed dinner plates and such.