I want to upgrade from my Panasonic Vivi DX to an e-bike that fits me better (5'10"/178cm, 214 lbs/97kg) with fatter tires and/or suspension and hyd disc brakes. But I want to keep the simple drivetrain, step-through frame, and local service. My choices in Japan are limited. Specialized does have their Como SL 5.0 Large-frame available and it's attractive, but it has a high step-over height (60cm) and no suspension (its 27.5x 2.3" tires would be a lot more comfortable ride than my 26x 1 3/8"). My question is: are those built-in 320Wh batteries a deal breaker? What would it cost to replace them years from now (or currently)? Their Como 3.0 IGH (which is not available in Japan) looks superior in every way: removable 530Wh battery (what does it cost?) and true step-through frame with front suspension and a better rear rack. Is there ANYTHING better about the Como SL than the new step-through Como? THANKS