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@jackbepablo
I have HY/RDs on one bike and JuinTech R1s on another (R1s are older). I have loved the HY/RDs, for me they are more powerful (both used with sram levers). There is an issue with the lever pull when set up as per the manual though, and I end up winding the barrel adjuster out really quite a lot to get them to feel right. Seems strange but it’s all balanced and they’ve been working great since fitting 4000km ago.
The R1s were pretty great, easy to adjust etc etc. However after c.25000km mine definitely need the pistons cleaning up as they are kind of wiggling our rather than moving neatly perpendicular to the frame. New seals will be needed after splitting the caliper but these are not available as far as I can work out. No response from the distributor. This is why I bought the TRPs instead of another set.