Here we go again.
At seventy three pounds, the A2B‘s most clever feature is its name. I’ve ridden BMX bikes back in the 70’s that had to be 40+ pounds. But 73? And I’m not ten years old any more.
If these designers were honest, they would ditch the cranks and pedals altogether, and just make it solely battery-powered. I can’t begin to imagine what it would be like to pedal something that heavy, unladen. But there isn’t much in the way of cargo capacity either. The 20″ wheels are not such a bad choice, as it will be easier to get rolling, and allows a lower center of gravity.
My suggestion is to start over without the suspension, and give it some decent cargo capacity. Also, the $2,500 price point makes it a hard sell. You’re not getting much utility at that price. For the same cash, you could buy a decent MTB, add an Xtracycle and an electric motor assist, and probably have change left over to haul a case or two of beer home on the finished rig.