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Ceramic piston broken. Again, whole new caliper.
There's got to be a limit of what is considered serviceable and replaceable though.
There's always going to be people that will find ways to fix 'anything' but normal users and even most bike shops and suppliers can't be expected to keep spares for every eventuality. In some cases, like brakes and their internals, it's probably safer to replace the whole lot because manufacturers can't guarantee the person working on it will have the skills to do it properly.
I mean, bike shops where my partner is from won't even touch tubeless tyres, they're not going to deal with Di2 or hydro piston replacement :D
hippy-
I mean, bike shops where my partner is from won't even touch tubeless tyres, they're not going to deal with Di2 or hydro piston replacement :D
Hope did it if you sent the brakes. I have done a few with donor pistons, I think you can buy pistons for some SRAM brakes, but I agree some people cannot be trusted. Bike mechs should be hold to some standard but half of us are teenagers in minimum wage
Netakure
All Di2 motors that eventually die and you have to replace the whole unit. If it's in production that's it because new ones aren't compatible.
As few days ago got a costumer that got a Di2 lever broken. Easy job to replace but turns out there's no replacement, you have to buy the whole unit.
Ceramic piston broken. Again, whole new caliper.
And don't get me started on specific frame parts or suspension.
We did it to ourselves, buyers is what keep the industry afloat and they always need the new thing. Brands just produce enough spares to cover for warranties