The V4R ABS looks to cement its legacy, offering a comprehensive electronics package mated to a screaming 999cc V-Four, and only slightly tweaked Superbike chassis.The heart of the Tuono is provided by a 999cc water-cooled V-Four that is only slightly modified from the production RSV4 sportbike. It produced the most peak horsepower and the best overall sound and character.(Center) The Tuono’s ABS system is well calibrated for road and track use. Its braking hardware however wasn’t quite up to spec with the Brutale 1090 RR or S1000 R.(Bottom) Once you figure out the menu system, the Aprilia’s electronics are pretty easy to adjust. However, the instrument display is starting to look dated now.