Puch actually made an electric concept apparently, back in the day.
I feel like I was just talking about this in another thread like Friday. I thought this was it.
Electric's cool. it's not cheap at all. but you can go really fast reliably and only use electric power. If you're in the market for an electric bike converting one outta a moped is a great idea. if you're in the market for cheap transportation, electric doesn't win at all.
Those cub conversions are cool, bt holy shit only 1kW and cost as much as a new complete build, ouch. but very sexy option. still - you could DIY that with better specs at the same cost or less.
that puch you linked I kinda hate the style but some good info in that write up. building your own battery saves a lotta money but it also takes some stuff most folks don't have access too, which cuts your savings right away. namely the spot welder and a battery capacity tester. The battery and circuit design is pretty great in that tutorial too, though the soldered copper wire on top of the nickel I doubt is worth it and I worry about it poking holes... also 81V at 85A is fucking bonkers, especially into a hub motor. That's gonna roach the controller and motor right quick but it's still cool as hell.
A 20" BMX hub motor built wheel is same size as a moped 16" wheel. on a maxi that takes 17's you can get like a 2.5 or 2.75 tire on the 16 (20in) rim and it'd look pretty good i'd guess.
here's mine: I did it cheap and shitty, it was a spare frame and more of a proof of concept type build. it'd be easily done better but you start spending lots on batteries especially. Also big take-away, get reputable batteries. Even Samsung's from ebay they'll slip in shitty clones, no way to know without testing each individual capacity.