Hello! Just a short time ago I bought a Derbi Senda X-Treme, bj 2005, 10,000km, 1A condition, around 140€ Everything original, engine runs perfectly and always starts the first time! What do you think, was it worth it? Another thing, it goes ORIGINAL 65km/h(the previous owners had to sign something where they confirmed that it goes faster than 45km/h)how can you bring it to about 75-80 without big change? Drossel out, then it goes 100km/h, that’s too fast, someone has an id ee? Besides, she has no sound at all, I just want a little better sound, what do you advise me? MfG Michi Ps:Thank you for your answers in advance!