Campagnolo Athena Shifter compatibility
My RHS Athena 11 shifter has failed and on inspecting the innards there's a metal disc "top plate" (over the spring) that's unscrewed. I can't figure out how to fix it - or if it's even fixable - so suspect I may need to replace the whole part. This is a Powershift lever - is it possible to replace with any 11 speed Campagnolo lever - and does it have to be Powershift, or will Ultrashift also work? Many thanks.