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So pieces for my Harley front brake upgrade have started to show up. Before anyone complains, wait! It's getting sport bike pieces! GSXR calipers, though, stock powder coating wouldn't do. So started stripping them:



Starting a bit of polishing:



Oddly enough one of those spent a few minutes on the polishing wheel, and one spent a few minutes on the wire wheel. The wire wheel one looks better? Going to make sure they work before I get too deep into them. Got rebuild kits coming. As well as brackets and 13" rotors for the bike.

Well I don't like the polishing part, but I like the end result. It's slowly getting there.



The other caliper is already split in two and all apart. The rebuild kit is supposed to be here tomorrow. The pistons where in good shapes, as where the bores. So hopefully all goes well (they were clean looking calipers for used parts).

that will be a much appreciated upgrade on that bike. that generation had wood for brakes.

Aaron Coomer (3.504) wrote: Tue Jun 10, 2025 12:25 pm that will be a much appreciated upgrade on that bike. that generation had wood for brakes.

I hope so. I have 13" rotors (dual) coming on the new wheels. I'm torn on the master cylinder. Sounds like most guys still run the OEM master cylinder. I'm really tempted to put a radial master cylinder on it though.

i think running a radial would be awesome.

if you want it, i have an extra brand new radial master (i can't remember if nissin or tokico). you're welcome to it. it doesn't have a lever or a resevoir.

otherwise i'm partial to the brembo RCS units. you'd need an RCS19 for that setup.