Engine wise the Shiver remains virtually unchanged, however Aprilia admit to playing around with the fuelling and fly by wire to make the fuelling smoother. This means power and torque is the same as before 95bhp and 60ftlb of torque, which is enough for a top speed of around 130mph. You don’t really need to bounce the Shiver off its rev limiter as there is plenty of usable torque for a brisk road ride.