Quote Originally Posted by ProDigit View Post
Thank you!
For sure, the 13T in the front is WAY too small!
I don't know how you can say the size of the 13 tooth front sprocket is way too small when the size of the front sprocket by it self means nothing. It is the combination of the two sprockets that matters.
I'm running a 13/30 right now on my 2012 DF with a top speed of about 65 MPH indicated at about 7k RPM now that I have an air filter that flows enough air to stop the cutting out. BTW, I am sitting upright and not tucked under.

Maybe you should start a different thread for the DF250RTC-B which looks like a neat bike. Also send an email to the seller to correct the 250cc to 229cc in their ad.