This bike came to us with a mild super sport setup and we made a few gains! This bike is a high comp, closed airbox, K&N filter, Yosh pipes, Ti retainers, PCV, with a fair bit of Gray Area special sauce. This bike is on track and absolutely destroying it!
https://ibb.co/jafdbJ
We have produced a set of titanium valve retainers for RC390's, you may ask why we would do such a thing? We have found that with extended high RPM usage the stock valve retainers will fail. The angles between the collets and the retainers do not match well enough for them to hold they valve...
Hello, we are Gray Area KTM a racing focused KTM dealer out of the beautiful Springfield, Oregon. We are proud to say that we have some of the fastest racers in the Pacific Northwest on the dirt and street. Our products and ideas are all race and dyno tested for dirt and street. Please forgive...