The last time I needed to replace the pads on my ZRX, I spent money on all new seals and a bunch of new pistons and went through three sets of calipers, and finally gave up in frustration. I tossed them to the back of my workbench and bought a set of Nissin four-piston calipers and never looked back. I'd be happy to give you the whole mess if we can figure a way around whatever tariffs we might encounter.
I do not remember if I mentioned this before, but the Hyabusa used those calipers, and buying the parts from Suzuki is MUCH cheaper than the same parts feom Kawasaki. Be aware that Suzuki sell the seals as a set for one caliper, not as individual seals. He same is true of the pistons. Speaking of them, the Hyabusa pistons are aluminum rather than plated steel. You can mix and match them as you please..
