Subject: Re: shimano sti 7 speed shifter Posted by: Jim on December 07, 2004 at 20:44:49: In Reply to: Re: shimano sti 7 speed shifter posted by Al on December 07, 2004 at 09:05:58:

Message: >>What will work in place of a shimano sti 7 speed shifer without having to change out any additional parts? >The cog spacing on 7-speed & 8-speed cassettes is essentially the same, so you can substitute almost any 8-speed shifter. >The general recommendation is to have the "extra" index click occur on the small end of the cassette -- this preludes the likelihood of the chain running off the cassette and into the spokes if the derailleur's stops go out of adjustment. > Shimano 7 speed cog spacing is 5.omm and 8 is 4.8mm. Close enough it works for some,not for the more AR...FWIW, the chain will go off the big cog even with 7 speed if the limit screw is too loose. I put the extra click on the big cog side and set the limit screw correctly. The limit screws are not 'self adjusting'.