I think that was a lower gear that went between two of the lower gears. To do the mod would require pulling the cylinder and splitting the cases and that is not cheap.
I think we were talking about the Suzuki dual range transmission.
http://www.chinariders.net/showthrea...e+transmission
The guy that had the Suzuki with the Honda XR engine and I can't find it. He moved from Alaska to Washington or Oregon.