Hey there, looking to get some help with a project bike I'm doing with my old man. He's got everything for this 1980's RM-400 and I was just wondering if anyone knows if I can use a 1996-98 RM250 frame? I'm literally brand new to Bikes and just want to get this going with him. Also, it should be stated I'm in the market for a RM400 bike frame I'd even use an old project someone's give up.

Thanks,

C