resistor wrote:
That kit looks pretty interesting. And I like the fact that it is a mostly turn-key conversion, which simplifies things a lot!
Specifically, the swing arm is probably the most difficult and critical part of the conversion and their solution is very ingenious. The dual shock mount is a nice touch also, but the shock placement is probably the reason they sprung for a drum brake instead of a disc. At their max speed, a drum is probably sufficient, but a hub motor is really a big magnet, and at higher speeds you'd probably like the additional stopping power of a disc.
Highlights (for me) are the 60v battery and swing arm design. Low lights are the 1000W motor--you'll need a bigger motor if you don't want to over volt and run hotter. Also the 20Ah battery wouldn't afford a lot of range, but being able to remove the battery for charging would allow for commuter usage. All the rest of the kit looks pretty comprehensive to me.
Finally, the problem with this conversion, and frankly my original build, is the max speed. 55kph isn't going to cut it most of the time. I believe it is the reason for the big yawn over the modern Vespa Elettrica, and the reason there aren't more electric scooters in the US. It's probably fine for an inner city commute, but here in Dallas, if you can't go 45mph in a 30mph zone, you're going to get run over!
I have taken apart my scooter and rebuilt it with a 72V battery, 4000W motor, and a host of changes that allow me to "enjoy the go". I've had it to 45mph, but haven't pushed the top end yet. I'm still in data collection mode and when I know more about the capabilities, I'll post again. This electric thing is coming, and someday will be more prevalent. But for now, it's a bit lonely for the electric guys.
I am following this with real interest. I have a 1981 PX that I am restoring, and recently got into ebikes. This made me consider building the scooter into an e-scooter. I figure I can sell the motor and parts for $500, which will help to offset the cost of the conversion. I figure the cost at around $2K. Does that sound reasonable?
Can you give me links to your 72V set-up, motor, batteries, controllers etc.?
I am very serious about this. Should be a blast, and more fun than the temperamental 2 stroke 200cc I have now.
Running and riding, though skipping out of 2nd.
Currently:
