I'm new to this. I'm 6' 4" and weigh 245 Lbs. Do I need an "S" bike? I'm looking at the upcoming Vado 3.0 or 5.0. Would the 3.0 work for me with my planned rides (up to 25 miles RT and relatively flat or should I up for a 5.0 just due to my bulk/weight?). I just don't want to buy something that will have the battery quit on me due to my weight. Thanks!