The easiest change to spot: the bodywork and overall design. The RTR 4V looks beefier and more aggressive with the new plastics, lights, and tank. Especially in the front, the improvements come from the fit and finish.The tank is lower and wider, carrying 12Litres of fuel. I fit on the new RTR 4V much better than the old one, thanks to those changes to the tank shape. It’s easier to grip with your legs while taking the corners. Technically, the “tank” is a plastic cover, not a metal unit, which means it’ll be much cheaper to replace if the bike goes down.