I´m wondering what the max load on these bikes are. Everything seems to be a perfect fit for me (size, price, looks) but I´m not sure it has enough power. I am about 210 lbs and my girl is around 140 (guessing here, if I´m off I hope she never reads this) all I want is to be able to comfortably go 45mph with both of us and maybe 65-70 with just me. Yamaha customer service couldn´t answer this so I thought I´d hit the message boards. Thanks for any help.