What does the name "light touch" mean, as applied to the old 6-speed Shimano Index (SIS) shift levers (downtube bracket type)? Is there another similar-looking SIS lever that is not the "light touch" type? If so, how to tell the difference? (In my lever set, the left lever is friction only, and it is just marked "Shimano 600" or 6708.)
What's the right method for using the friction/SIS settings on the lever hub? It's a bit cryptic. The friction seems inadequate even after a firm clockwise twist on the bail. (Should all lubrication be avoided?)
I intend to replace the right-hand click shift lever because one of the most-useful internal click-stop tabs has broken off. The setting now tends to creep, giving surprise upshifts. Thanks for any expert feedback.
What's the right method for using the friction/SIS settings on the lever hub? It's a bit cryptic. The friction seems inadequate even after a firm clockwise twist on the bail. (Should all lubrication be avoided?)
I intend to replace the right-hand click shift lever because one of the most-useful internal click-stop tabs has broken off. The setting now tends to creep, giving surprise upshifts. Thanks for any expert feedback.