I'm one armed and build the things I need. This bar is just a prototype made to be adjusted to create a template for a final design. Now I'm trying to get the shifter moved. Found this twist shift its indexed is that going to be a problem?
by bionicpirate42
3 Comments
Not directly (unless you’re lucky). Indexed shifters pull different amounts of cable per click, so the shifter and derailleur have to match “pull-ratio”. It’s not consistent between brands, types, or even generations of the same model, so it’s easiest to match the shifter and derailleur exactly. Sometimes, you’ll find things that are compatible that weren’t originally a set, but that can be a lot or research or trial and error.
Sounds like you would benefit from a 1x setup on your bike.
As to replacing shifters, it’s usually easy enough, but it depends on the bike and the drivetrain.
Unfortunately most likely yes. Most friction derallieurs have different pull rate than their indexed counterparts, meaning that your shifts would be all over the place. If you fetch a cheap index compatible RD, you should be golden though. Alternatively you should be able to move the friction levers, but i expect that’d not be very ergonomic for you. Supercheap left (front) twist-shifts are also semi-friction, except working inverted should work too if you turn it around, so you can have a proper grip.
So you either need to give up the ergonomics of twist-shift, or you need to get some parts. I’d guess though you could get either for very cheap or even free.
Shifting performance however without indexed sprockets would likely not be excellent.