those busa ones are the same as srad and tlr.
the 4 pot ones from the older 750 1100 work as do rgv 250 and others im sure
Doesnt the bandit 1200 have 6 piston front breaks? or is that something they put on to?
The 2G B12 has 6-piston (Tokico) front brakes. Never had any breaks on mine though.
These are the same as the Busa, etc.
Several Kawasaki models use these too - like the ZRX, ZX-9, etc.
The 1G B12 has 4-piston Nissin calipers. The fork mouting is the same as the 2G though, so you can upgrade a 1G to 2G brakes. (Just be sure to use the Tokico banjo bolts in the calipers, the Nissin bolts have a different pitch.)
The 3G has 4-piston Tokicos, don't know if they interchange though since we haven't had anyone here that's taken possession of one yet.