Fitted and set up any system should be ok for occasional use tbh, but as theyre filled with hydraulic fluid, which i believe expands over time, you might have to undo a bleed nipple to draw off a little, though that wouldnt require further bleeding, not usually is my experience.
My own use of C2's was initially pretty much daily, to occasional and i didnt have any problems in the 8 years i used them.
Hope will not service C2/O2's they simply dont have the replacement bits like pistons any more, though may have seals any the like.
That said theres very little can go wrong, and wear is to the replaceable rubber bits, which are available online but are disappearing, so buying for spare o-rings/seals or the other replaceable bits would be prudent.
Like everything, they need looking after cosmetically. This is really the key to them remaining in full working condition for years. Wear to the pads means the piston sides are exposed(as in al) A build up of grime around them scores the piston sides, allowing critical leakage, plus corrodes the metal around this area, usually rendering it unserviceable, especially if trying to remove a piston, it if damaged can add to the scoring. So looked after = not looked after = bad
Modern Hopes and the corrosion they seem prone to these days, but is not the same as the older alloy in C2, which seems pretty robust to corrosion and damage :? Personal thoughts there, but then I looked after mine.
A great brake in general and is considerably more powerful than other 2-pot, inc modern Hopes(IMHO)
Persoanlly i was lost in me own little world so missed O2's totally.In fact i dont remember anyone using or even seeing them in the shop :? possibly really short lived with monos coming in before they had a chance to get used.
Many kits hold similar parts so they do selections that cover most replacement parts. If still about, prudence is your friend. Theres nothing in the fact theres lots currently about. More to do with the fact theyre so good./ Who wants a brake youve got to constantly fiddle with or replace parts.
Overall,. it looks the part and does the job. its older, likly tatty, but if mechanically sound will just keep going. A bit like Z2 bombers. Again used by me for 8 years and found on its first seervice that new oil and thats all thats needed.
Forks of today might be ultra plush and soak up even ripples,or not affected by pedalling, but theyre too precise and too maintainance hungry because for that. And as we've seen, wear out far too quickly.
