When we started racing a Yamaha RD in 2003 we knew we needed to do something with the chassis. From there we developed a series of Seeley style frames to make the RD400 GP worthy. We have been running this chassis since 2005 and have had much success. This RD400 has under gone numerous changes over the past several years. We have been through 4 different fork types. Two different rear shock types. Five different tire types. Two different swing-arms. Two different expansion chambers. Two different crankshafts. Three different clutches. Three different rear discs and numerous other changes to get this bike just right. We now have one of the fastest, reliable RD400 road-racers. The black frame with a white fairing in 04\05 was the very early stages. The black frame with a blue\silver fairing was the 06\07 bike. Then in 2008 we powdercoated the frame silver and is now in its current state ready to capture an AHRMA Formula 500 championship for 2009.