1961 electric VBB
Post Reply    Forum -> Project Reports Previous12
Author Message
Lurker
2003 Stella 2T
Joined: 31 Aug 2020
Posts: 2
Location: Salt Lake City, UT
Mon Aug 31, 2020 1:15 pm quote
I've been following this thread for a while and happy to see recent updates.

I have a 2003 Genuine Stella 2T which is essentially a PX150 large frame. I attempted a full IC engine rebuild last summer and it ran great but something wasn't right with the gear stack. I had thought about going electric before the rebuild and now I'm ready to ditch the 2 stroke!

@resistor I'm super interested in your 72V upgrade. I've been eyeing a motor from Kelly - their 72V 6kW motor - which seems like a beast. I've also looked at the battery pack from Luna, but it is pricey and may not be powerful enough. Leaning towards assembling my own.

Just wanted to check into this thread and say hello. Keep up the great work!
Addicted
GL, PK, PE200 with hack, Sears Rust Badge
Joined: 24 Apr 2012
Posts: 928
Location: Deep in the heart of Texas
Sun Sep 06, 2020 6:23 am quote
This is getting more and more interesting. Freak Moped got his hands on one.

https://www.youtube.com/watch?v=qXuz0pHAAHU
Member
2013 S150; 1961 VBB
Joined: 18 Feb 2019
Posts: 22
Location: Dallas
Sun Sep 06, 2020 8:34 am quote
That's really cool. He is using the stock swing arm and motor casing, so no hub motor. The engineering is brilliant!

He is using 3 batteries to get the range extension (200k/120miles). However, I'm not sure I have the stones to put a battery under the floorboard attached with sticky tape.

There was an outfit in Seattle, I think they were called Sound Speed Scooters, that briefly offered a similar set up, but they disappeared pretty quickly. They were a little early, as the battery tech has come a long way since then. Still more to go before this becomes mainstream, but 20hp should be plenty for anyone in the scooter world.
Enthusiast
px244gs, cosa221LX, sprint177, gilera runner 180, triumph tiger 955
Joined: 09 Sep 2013
Posts: 64
Location: vienna/austria (the other one, w/o kangaroos)
Mon Sep 07, 2020 12:57 am quote
pls moped & freak together
freakmoped it is!

its very well done and has the charme that you can still hand gearshift which i think is ingenious! & it even has a kickstarter

fun to ride, engine has 15kW, but its set to 9kW = 12hp
as they still have some TPS setting issues
i would NOT go for less power, near to 9kW is needed


box exhaust with sticky tape = controller, not the battery
the three batteries are in the spare wheel lid and tank area
same cells as tesla uses, i was told

more info:
part1: https://bit.ly/3h5YdoL
part2: (only analog, digital to come)
part3: https://bit.ly/2GqCTxp

its the austrian crank-e principle where you keep the gearbox
www.crank-e.at

test ride with crank-e smallframes
https://bit.ly/2FakLHx
https://bit.ly/3h2VxIx

more info about the project in the austrian news papter motomobil
part1: https://bit.ly/3h5YdoL
part2: (only analog, digital to come)
part3: https://bit.ly/2GqCTxp


dont ask about the costs
you get 2 bfa 306 engines for it
Hooked
P125x (4KW Hub Motor)
Joined: 06 May 2019
Posts: 259
Location: Alexandria, VA
Fri Dec 18, 2020 12:06 pm quote
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:

Member
2013 S150; 1961 VBB
Joined: 18 Feb 2019
Posts: 22
Location: Dallas
Sun Dec 20, 2020 10:04 am quote
Jim,

I think you can easily do this conversion for under $2K, depending on your choice of components. The battery is the most expensive part, and you have many choices on motor controller and hub motor. All these parts come from China, so you have to factor in shipping costs when you make your decisions.

The hardest part, if you don't have to teach yourself some basic electronics, is the swing arm. If you can make it yourself, you'll save some $$$. From your restoration work so far, it looks like you could possess the skills. I did not, and I had my fabricator do some other work as my bike started life as a bodge. You are already at a better starting point.

I've mentioned somewhere in this thread that I had to lie to my wife about how much it would cost to do this project. I think she may be on to me now though. But it is doable if you can do the other conversion work yourself.

I love this scooter as an electric. It is fun to ride, easy to maintain, and never leaves a puddle in the garage. Amongst the gear heads on this site (and there are some amazing technical talent here) you will be in a fringe cult. But like all cults, we are always looking for new members...
Hooked
P125x (4KW Hub Motor)
Joined: 06 May 2019
Posts: 259
Location: Alexandria, VA
Sun Dec 20, 2020 11:59 am quote
resistor wrote:
Jim,

I think you can easily do this conversion for under $2K, depending on your choice of components. The battery is the most expensive part, and you have many choices on motor controller and hub motor. All these parts come from China, so you have to factor in shipping costs when you make your decisions.

The hardest part, if you don't have to teach yourself some basic electronics, is the swing arm. If you can make it yourself, you'll save some $$$. From your restoration work so far, it looks like you could possess the skills. I did not, and I had my fabricator do some other work as my bike started life as a bodge. You are already at a better starting point.

I've mentioned somewhere in this thread that I had to lie to my wife about how much it would cost to do this project. I think she may be on to me now though. But it is doable if you can do the other conversion work yourself.

I love this scooter as an electric. It is fun to ride, easy to maintain, and never leaves a puddle in the garage. Amongst the gear heads on this site (and there are some amazing technical talent here) you will be in a fringe cult. But like all cults, we are always looking for new members...
Thanks for jumping in. Your scooter is my inspiration! My wife is generally on boards, as far as that goes. So we shall see. I'm pretty confident that I can work up a swingarm. Maybe alter a motorcycle one that is close in dimensions. The good thing about a large frame is there is a lot of room to work with, so I have more options for batteries!

Lots of research and study to do, but I am really amped (bad pun) to get this project underway.
Land of 10,000 Scoots Rally   vespa scooterwest scooter west Motorsport Scooters   AF1 Racing Vespa Austin
Post Reply    Forum -> Project Reports Previous12
[ Time: 0.1343s ][ Queries: 25 (0.0382s) ][ Debug on ]