Did couple searches but only came up with shimano cassettes with Campy drivetrains.

Hopefully the tech guys can answer this, while using Campy veloce 10sp shifters linked to a campy veloce 10sp hub and cassette, will a Shimano Dura-Ace 7900 rear derailleur work with the setup?

so campy shifters/hub/cassette, with shimano Rear Derailleur

thanks

Absolutely not. Shiamno RDs use an entirely different amount of cable pull, averaging only 2.3mm per shift, compared to Campy's 2.83mm.

Unfortunately that's correct. J-tek doesn't make a Shiftmate to compensate for that particular arrangement.

Maybe this combination will work fine??

https://velonews.competitor.com/2008/...-why-not_73404

One of the poorest article Zinn ever wrote. He failed to measure the individual cable pulls. If he had, he'd know that Campy 10 shifters pull only 2.5mm of cable for each of the first five shifts, 3mm twice and 3.5mm twice. SRAM shifters pull the same 3mm of cable pfor every shift. What that means is that after 5 shifts of a SRAM shifter, you have 15mm of cable pulled, but the RD only needs 12.5mm, so you have about one whole shift too much. That can't make for good RD positioning after only the first 3-4 shifts.

I don't know about that. He once wrote an article on on the value of ceramic hub bearings in which he claimed the 10% reduction in hub friction losses applied to the entire rider/bike system and concluded that a rider needing 200 watts to maintain a given speed could save 20 watts by using ceraic hub bearings.