MegaDan,
The new Pitster bikes are being rebranded as "GPX moto". The frames are very similar to the LXR250, but they will come with 4 different motor options:
1. A 2-stroke (40hp) Yamaha DT230 clone (electric start)
2. A 4-stroke air-cooled true 250cc Zong motor similar to a 230f honda
3. NC250
4. NC450
He has said that the first batch of bikes will be carbureted, but EFI will be coming in the fall and it will most likely be Delphi system.