Hello Stefan und Vielen dank für info!

With SuperDuke i would be more interested about these "non-official" races, since it is not the ultimate "drag-bike", but if joining the EDBA races isn't extremely expensive, i will definately consider them also.
If i understood you correctly, Street Twin class is also available in EDBA series..?

I will contact you in near future about the membership and licence.

And thanks again for very quick response and your help!

Cheers,
Rami

Ps: This is my what i built and drove in Finland before moving to Germany:
DragMoto 1200 Turbo
247ps from rear tyre
Drove it only once at 1/4-mile with poor result: 10,009s. / 229km/h