I have this old MTB. It has a 7 speed Suntour freewheel.
I got some Shimano 7 Speed Rapidfire shifters from a swap meet and the bike rolls along except:-
It won't shift into the large chainring (of a triple). It's even really hard to even push the lever to the position. The rear changes OK except it seems to skip a shift in the series (so it's 1, 2, skip, 3, 4, 5, 6, 7).
So I was determined to get it sorted and my first instinct was I'd put the bottom bracket in wrong so the chainring was extended too far out - but no.
Looking at the shifters I noticed they had this other cable access point on them so I though it was maybe a 7/8 shifter or a double/ triple so I re-routed them. Maybe a slight improvement.
Anyone know why these shifters have two cable exit points?