Yamaha R1 vs. Aprilia RSV4

When you pit 2 bikes like this against each other, you have to remember that they are so close and so good that you are really comparing preferences instead of hard data. I suspect that 2 different testers may well have picked a different winner- and as they point out, on the racetrack everything changes.  Even the egonomics will make one bike better than the other depending on the rider. So, take your pick from 2 awesome bikes!