i tried finding a better pic, but this bike is an 88' so little to no pics online, but it is a push style.
in the most basic sense, you apply the brake via right pedal, which pivots and pushes the rear joint on the hub back, opening the brake pads inside the hub.
in the pic i posted the smaller dia one is the brake, which will be beefed up to M6.
the larger one is the shift linkage, which will be made to either M10 or 12 depending on whats a bit bigger and close.
I've found that even being a Honda, it's quite a bit of SAE, and I'm planning on making it as metric as possible.