About this deal
These things made my cable actuated disc brakes, on my new gravel bike, bell “exactly” like the thoroughbred hydraulic brakes on my hybrid bike. In contrast to a mechanical brake, both brake pistons of the JUIN F1 move evenly in a movement parallel to the brake disc. One of the socket set screws is by the actuating arm but at 90 degrees to it the other is on the end of the reseveoir by the J of Juin. It sounds too good to be true – road disc brakes that are cable-actuated, but with hydraulic power, for an affordable sum. Well the brakes didn't immediately feel much more powerful than the cable disc brakes (Hayes CX Expert) fitted previously, but after a week or two of riding the pads had bedded in nicely.
My question is, has anyone else experienced running Juin Tech F1 with SRAM 11 speed (RED,FORCE, RIVAL 22). But once they've bedded in, they'll allow you to brake later and more confidently, and that's definitely worth paying for. As the brake pads wear out over time, the caliper will need occasional adjustment to bring the pads in closer to the rotor.I got caught in a summer shower - downpour might be more accurate - on the bike's maiden run, which gave me a good chance to test the brakes.
I wonder if the potential problems are somewhat overstated given that some bike manufacters ship fully integrated bikes with mechanical shifting, e.
However the GT's with Sram levers have more than enough power to do the job - the difference in performance between the two systems, though significant, is not huge. As with the Juin Tech R1, you can fine tune how closely the pads sit to the rotor using the barrel adjuster on the caliper unit. So they’re a closed system then, wonder how well they’d cope on the road, seeing as C2’s could expand tot he point of locking up I’m imagining a road bike will be worse?