Subject: Re: &spd vs 8 spd STI Posted by: Jim on December 04, 2000 at 10:37:47: In Reply to: &spd vs 8 spd STI posted by Ted on December 03, 2000 at 17:15:21:

Message: >Will 8 spd STI levers run a 7 spd drive train, (7 spd. cassette etc)or do I have to try and find 7 spd STI levers?.............................................................Cog spacing is different between 7 and 8 speed, but it is close enough that 8 speed shifters will usually shift a seven speed cogset,especially when combined with shimano's floating top derailer pulley,which adds a little slop and forgiveness to the system. May take a bit of fine tuning to get is just right.In dealing with 7 and 8 speed systems,be aware that Dura Ace shifters only work with Dura ace Rear derailers,due to different cable pull/derailer throw ratios.Ok to mix and match components in the other groups. Check with LBS on availaibility of SORA seven speed STI shifters.Sora was introduced as the lowend 8 speed group,but I recently saw a test of a new Fuji bike with SORA and 7 speed rear cassette.