Who is the flat-track driver who intervened in the development of the Harley...

[Teo]

...Davidson XR 1200? Is very important to put the source, I'll give 15 points or more to best answer or more.

 

[randall flag]

Joe Mama...one of the regulars on the flat track circuit

 

[Cyberbiker_1]

Well, it's either Scott Parker or Rich King. They BOTH participated in the design.

From the site I've posted below:

Drawing significant styling influences from the successful Harley-Davidson XR-750 motorcycles that set new standards for dirt track racing success over the last 30 years, the XR1200 features technical innovation to provide potent street performance and handling. In fact, Harley-Davidson dirt track racing legends Scott Parker and Rich King participated in the XR1200 development.