Originally Posted by
Nubra
Converting an older 1980's Univerga with downtube Suntour shifters to upright bars for housemate. She is a everyday rider, but would love to have indexed just because she is just "not mechanical". Is there such a thing? I see el cheapos online, but hoping you guys/gals will steer me in the right direction. 22.2 handlebars. Thanks for your help. Cheers!
I'm not the definitive expert on this, but I think Suntour's only indexing was Accushift, which will need the specially spaced freewheels and cassettes for 'perfect' indexing. They had 6 and 7 speed indexed thumbies for ATB's, but without that idiomatic spacing, you're probably only going to get mediocre indexed shifting.
Second Edit:
You said Suntour, and I automatically assumed you wanted to stick with them. Unless you're using an Accushift cluster, there's no need to stick with them. It's probable that modern "el-cheapo" will accomplish the task just as well as a 6 speed-era Shimano indexed thumbie (if such a thing was made).