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Juin tech R1
My juintech we're better than my spyres, which were better than my bb7s, but they were worse than my full hydros. They're definitely the best if you insist on cables, although you kinda lose the apparent advantage of being more reliable as you could brake a cable or need a bleed kit all on the same bike, never had any problems though.
Also if you've not decided on who you want to build it and don't mind a bit of Ti then someone I work for can help. -
Juin tech R1 are .... ok not good but not bad, Shimano Hydro are significantly better.
I have two bikes presently one with Juin tech and one with Ultegra Hydro, the Ultegra brakes harder, more consistently and after 3 years has required zero maintenance beyond cleaning.
Juin tech has also just released a new model GT1 (?) which apparently is better.
i think people often overlook the main benefit of the cable discs is actually getting a normal sized, ergonomic and good looking hood compared to the hydro equivalent, imo.
as someone with small hands i much prefer them