I have no intention to troll or whatsover, I just wanted to have some information from people who actually drive those bikes. As for why a logistics student need those information the answer is that in my course Production Logistics we got this product about starting a trial motor manufacturing plant and afterwards succesfully advertise it. My idea was to offer customization to customers and not manufacture its own engine but buy one. That's why I asked you that question, this project is 100% of my final grade and that's why I put so much effort to actually contact someone. Thanks to all who gave usable answers. Regards, Ivan