Where do you live?? I don't know what a DM GP1 Telai is, it might be a Polini rep engine. I have a 50cc C1 copy bike and a 40cc Polini rep engine and am putting in an MTA2 Cag frame. You might look at Tsunamibike in Canada. The have BZM, Polini, Blata real and copy parts. Midsouthminimoto has alot of parts too.