My brother stunts a Kawisaki 636. The dual caliper mounting bracket he uses originally accepted a six piston caliper. His master cylinder was not strong enough to grab the rotor as hard as he needed. His thought was simple just put a smaller caliper. So thats what we did! He went with a four piston caliper off the same type of bike, I believe it was a R1.
I found this bitchin little tank on Craigslist. It sits a little to high. So I decided to chop it! I kept the chrome in mind while making my adjustments, I don’t know if I will use it later for the finish. I also reinforced the mounting points to battle that Harley Davidson shake.