It is not "fly by wire". Hydraulic pressure applied by the master cylinder goes to the calipers. It passes through the ABS module that can nudge the controls if the rider does something out of bounds. Few roadracers keep ABS, tightly or wrongly.
Below is an article quote for the 2013+ cbr600rr; with riders including Ron Haslam; sounds like fly by wire brakes. Don't know if I want a computer controlling the amount of hydraulic pressure going to the brakes-and they're saying this is exactly what is happening.
News to me and not sure what to make of it.
LINK to article
https://www.bennetts.co.uk/bikesoci...3-honda-cbr600rr-first-full-track-test-review
In fact, the brakes are astounding. Brake as hard as you dare in incredibly difficult conditions from high speed (around 120mph today) and the bike stops without you even realising that ABS is fitted. The system combines front and rear brakes together and stops the bike diving so much under braking. It's great on the track and on the road should be a revelation.
The new system uses brake-by-wire. That means when you squeeze the lever at anything above 6mph, it sends hydraulic fluid to a braking power unit. This then sends an electronic signal and applies the amount of brakes required depending on the lever pressure.
When you pull the lever, you’re actually getting the feeling of a conventional brake but it’s through rubber springs rather than the amount of hydraulic fluid you’re sending to the calipers, and the computer is doing all the work.
It sounds terrifying to a luddite who’s first bikes had a cable and a drum, but in reality you’d never know it’s fitted, it really is that good, and unlike conventional ABS systems, Honda’s CBR600RR system doesn’t give any pulsing at the lever when the ABS is kicking-in.