Another problem with the 2011 Aprilia RSV4 APRC is the clutch-less shift system. If the revs are high and the throttle is fully twisted back, the system works really well. However, it tends to be a problem in every other situation. There is a cut in power that goes unnoticed at higher revs but tends to be too long and too big to go smoothly in lower revs. It also tends to upset the chassis balance, which becomes a problem when cornering and deciding to switch to another gear. Nevertheless, the system is not as bad as that in the Ducati 1198 but not as good as the BMW S1000RRR. Apart from the APRC system, the 2011 Aprilia RSV4 offers quite a bit of power from its V-Twin four-cylinder engine. Power delivery from the compact engine feels great and almost exotic. It lacks the acceleration of the inline four-cylinder engines used in Japanese bikes, but it does have lots of midrange torque that makes it easier to pull through a tight bend harder. The exhaust note in particular is amazing, and the suspension system dampens most road imperfections but stiffens the ride when it moves through the stroke. The bike shines more with the traction control and suspension when exiting corners.