Motorcycling is supposed to be about having a ball and Yamaha have got the mix absolutely right with this bike. It may be practical and flexible, but it's also a brain-out machine in the best Yamaha tradition. It's a Yamaha tradition that can trace its roots right back through the R1, the RZ350LC and the original nutter bikes, the aircooled RZ/RD 250/350/400s of the mid-Seventies.