Keith McCarty, Yamaha's US racing boss, explains the idea behind the DT-07 Concept: "Yamaha's history started in dirt track with Kenny Roberts, and we were quite successful in all those years. Since that time, we haven't really had an engine configuration than could compete in that class against the present models. Then the FZ-07 came out with its offset twin and crossplane crankshaft, and we all know that dirt track is all about traction and control. You have a specified tire, so you need to put all that power to the ground. That firing order, as in roadracing, definitely lends itself to good traction. It lets the tire recover a bit."