What makes the TT-R better than the XR?
Everything! The TT-R is a modern version of the 20-year-old XR. Yamaha has jumped right into the early 80s with the TT-R. The TT-R has a beefier transmission because it was designed for the road, has a bigger clutch that is bulletproof, bigger valves, a counter balancer, a roller cam, ignition that runs in the oil, etc., etc. The TT-R motor is bulletproof and starts with one kick, every time. The XR is still the greatest bike of all time because everybody has one and learned to ride on one, but its time for an update.