I put the Brembo T-Drive 330's on my GRiSO's. They fit fine..you need the adapter kit ( AF-1 and probably others sells it, basically 4 little spacer's and 4 slightly longer bolts) to move the calipers back to accomodate the larger rotor. ( Same rotor configuration as most of the Guzzi's and earlier Aprilias use) I also put on RCS Corsa Corta Brembo master and Speigler front brake lines and M-4 Calipers....Needed? probably not but I love the feel at the lever.