Originally Posted by
Allenos
I'm planning to buy a new shimano 9s shifter and chain 9s cogs, and my shimano tourney 7s rear derailleur still working. My question is it compatible to speed rear derailleur with my 7 speed? I think i read somewhere that it will work but just want to be sure.
Also have a problem with chains get slipping
Thanks
A supposedly 7-speed derailer will work with a 9-speed shifter.
A new chain and cassette may cure the chain slip problem.
A 9-speed cassette won’t fit on a 7-speed freehub body.