My first bike was a 750 turbo so a 600 would work . But like everyone said the 650 would be plenty and better for what you plan on useing it for . Less expensive for the bike and insurance . My son bought his wife one . She started out on a 250 for one season then moved up to the 650 . My son says it has plenty of power and no problem keeping up with the bigger bikes . Be carefull out there.