My right-side Veloce (powershift) shifter is jumping/slipping gears on the downshift (releasing wire tension), sometimes jumping the whole cassette. It upshifts (increasing wire tension) fine. My thinking is that the ratchet is giving up? I gave it a fairly good spray with some lube to try to flush out any gunk in there with no luck. But it’s fairly clean and it’s done max 2000km. I haven’t had a good look at it, but my thinking is I’m not going to have much luck taking it apart.
Thoughts? Is it toast? I bought it off Ribble so I’m not holding out much hope for a good warranty claim.
I have two shifters like this; a Veloce and a Centaur. Both only shift one gear down at a time (my other Campag shifters shift multiple). From my research, I think MikeD is right. Disassembly looks fiddly, but not that difficult (youtube). I plan on pulling one apart and if it has a G spring, I’ll get a replacement and reassemble.
they won’t have g springs, powershift uses a different mechanism which is unfortunately badly made of cheese, and rather difficult to reassemble, (even if you could find replacement internals (which would likely shit themselves shortly after)).