Power in Flux

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caza replied to the thread New Member, want to start a Kymco Spade Conversion..
" That's fair, getting another swingarm isn't a big deal. It seems to me like QSmotor is the only real source for these types of hub motors, or am I missing something? "

6 Hours Ago

Stevo replied to the thread New Member, want to start a Kymco Spade Conversion..
" Just remove the swingarm, wheel and components and store them to put back on. You can find a swingarm that will fit and modify the new replacement one that you find, as long as you dont have to modify the frame too much. I suspect that you will have to do some welding/modifying to the frame, but that can probably be done so you can revert back to original easily enough. "

14 Hours Ago

Stevo replied to the thread Hello Electric Motorcycle World! From AllElectricMotorcycle.com.
" There was a member here up in Canada that had a problem with importing an Urbet Ego a few years ago. That would be a good article to write "

14 Hours Ago

caza replied to the thread New Member, want to start a Kymco Spade Conversion..
" Maybe my wording wasn't great. It's not that fabrication bothers me. Of course I will have to do plenty of fabrication, from the motor mount to the battery box to the battery itself. I do appreciate the link to that thread though, it's one of the better documented conversions I've seen.

But I want what I fabricate to bolt to the existing frame without modifying it. It's not that mounting a caliper bracket or modifying the swing arm is difficult, it's that it requires modification of the swingarm, which I want to avoid. I want to keep the bike as close to stock as possible aside from the necessary drivetrain components.

I did do a little research on possible hub motors, but it seems like more trouble than its worth just to space and sacrifice performance. The only hub motor manufacturer I could find that would match the 12 x 3.5 wheels on my spade is QS motors, but their standard configurations of this size are meant for scooters with more narrow swingarms. So again, I'd either need a whole new swingarm or have to custom order the motor itself. It also seems as though shipping from QS is a big unknown right now. Most of the listings for their parts on aliexpress straight up say will not ship to the US, and it seems that the timeline for stuff that will ship is entirely unknown.

The more I think about this project the more power I want, it seems. I'm now looking at the ME1718. Lots of power in a compact size. "

1 Day Ago

AllElectricMotorcycle created the thread Hello Electric Motorcycle World! From AllElectricMotorcycle.com.
" Hey everyone, Happy to introduce our news outlet for EVERYTHING on 2 wheels (and sometimes 3..) that RUNS ELECTRIC!

https://allelectricmotorcycle.com/

We will be happy to hear news and scoops, get your requests for coverage and interviews (we do dedicated interviews on topics audience wants)

AND MORE TO COME SOON.

We will soon launch the first ever compare tool, allowing you to view the full specs, and compare them side by side.

Happy to be here
Blessings.
https://allelectricmotorcycle.com/ "

1 Day Ago

Spoonman replied to the thread ElectricGT anyone ?.
"
Quote Originally Posted by Hugues View Post
On page 6 of their spec sheet,
https://electricgt.com/wp-content/up...y-brochure.pdf
we read between 410 and 600 A peak amps per module depending on the configuration.
Sorry, you're right - I was reading that all wrong. Thought that bottom line was stats for 10 modules in parallel.
In that case you're golden "

1 Day Ago

caza replied to the thread Zero 75-5 Motor.
" Are the kelly and ME motor still available? "

2 Days Ago

Hugues replied to the thread ElectricGT anyone ?.
"
Quote Originally Posted by Spoonman View Post
Looks like max 4C discharge on those Energy modules so your 10S arrangement would peak at 60A, whilst your 5S2P arrangement could only handle 120A.
The Power modules appear to manage 8C which would be more usable but you're paying a premium at that.
Hi,
Unfortunately I cannot fit their Power modules, too high.
But how do you come to 60A/120A discharge ?
On page 6 of their spec sheet,
https://electricgt.com/wp-content/up...y-brochure.pdf
we read between 410 and 600 A peak amps per module depending on the configuration.
I just need 400-600amps for a second or two. "

2 Days Ago

Spoonman replied to the thread New Member, want to start a Kymco Spade Conversion..
" As I said, just a baseline to tailor from.

A centralised motor is definitely the better way to go for higher performance, but there's little benefit to it beyond that IMO.

Consider that you're concerned about making a bolt on bracket for a caliper; and then consider that to mount a motor inboard you're going to have to fabricate custom motor mounts at the least.
You're also going to need to build a battery cage, mount a controller, fit a wiring loom and come up with a charging solution - so if a small bracket on the back wheel is causing you concern then you may want to reconsider doing this to begin with.

There is no 'bolt in' solution - these projects require fabrication, there's no way around that I'm afraid. "

3 Days Ago

Spoonman replied to the thread ElectricGT anyone ?.
" Looks like max 4C discharge on those Energy modules so your 10S arrangement would peak at 60A, whilst your 5S2P arrangement could only handle 120A.
The Power modules appear to manage 8C which would be more usable but you're paying a premium at that. "

3 Days Ago

caza replied to the thread New Member, want to start a Kymco Spade Conversion..
" Thanks for the response.

I'm not totally against it, but for a few reasons I'm trying to avoid a hub motor. I'm not too concerned about the typical unsprung weight complaint, but one of my main goals is to keep the build simple and bolt-on.

Looking through Biothunders thread and images confirms some challenges that I'm not really interested in taking on for this particular project. Needing to possibly have a custom swingarm mount for the right caliper and bracket and then modify and weld the bracket onto the swingarm, etc all adds complexity to a project that I ultimately want to keep as simple as possible.

Mounting a mid-drive motor seems much more straightforward to me, even if it digs into my battery space. Mid-drive would allow me to leave my stock brakes and structure entirely in place.

I took some measurements, and assuming the mid-drive motor has an 8" diameter, I would easily still have space for a 3KWH pack out of salvaged model 3 cells. Which should be plenty for me. "

3 Days Ago

Richard230 clicked Likes for this post: Little Tomos moped by jordan325ic

3 Days Ago

Hugues created the thread ElectricGT anyone ?.
" Hey guys,

long time no post here,

I've been thinking about swapping my 26 Leaf cells for a while, range is down, would like more.

I've found this site:
https://electricgt.com/

Contacted them and started to make some rough cut simulations. Looks like I could fit 10 of their OX Drive Energy modules.
In their 6s version, that would give me 22.2 kWh for 112 kgs, quite an improvement on range from my Leaf cells at 13 kWh (when new) and 96 kgs.
I would pair the 10 modules 2by2 to bring the voltage down within the range of my Curtis 1238-7601 (max 125V), to get 82V when fully charged, vs my current 106V (with probably more sag than electricGT ?).

Wondering if I would feel a significant decrease in torque on my HPEV's AC-23 , chart here for 96 V nominal:
https://www.hpevs.com/Site/power_gra...ric%20peak.pdf
and here for 72V nominal
https://www.hpevs.com/Site/power_gra...ric%20peak.pdf

Otherwise if I connect them 10S I would end up with 164V fully charged, would need to upgrade my Curtis controller to their latest, and also upgrade my Orion BMS to get more cell taps.

Anybody has dealt with electricGT ?

thanks

Hugues
from Switzerland
https://www.facebook.com/zvexx.motorbike "

3 Days Ago

Stevo clicked Likes for this post: Little Tomos moped by jordan325ic

3 Days Ago

Stevo replied to the thread BMW and Energica EV news.
" BMW coming out with a suit to ride emc's on the moon!! "

3 Days Ago

jordan325ic created the thread Little Tomos moped.
" Hello all,

I found this little moped on the side of the road with a "free" sign. 2009 Tomos, came with no motor or wiring harness. Cut open the gas tank and had a 48v10ah battery custom sized to fit into that slot. D/C-D/C converter runs the stock headlight/tail-light/brake-light/high beams. Cable-driven speedometer recessed in healight bucket still works. 1000w golden motor rear hub motor kit from goldenmotors.ca. Internal wiring, controller under the seat. All-in parts total came to $800

25 mile range, 25mph top speed with a smaller rider. With a huge rider it's 20mph, 20mi range, bike lane 'legal'. Pre-covid when I lived in the city it was faster to get across town on that due to Austin, TX traffic. Now I live in the country but it still finds uses.

Anyway, just a hello!Attachment 8521Attachment 8522 "

3 Days Ago

Spoonman replied to the thread New Member, want to start a Kymco Spade Conversion..
" Looks like an idea candidate for a hub motor based on that usage profile.
Simple, costs effective and space efficient.

Biothunder has a well documented spec here for his effort which will provide you with links to the sort of components that you're after: http://elmoto.net/showthread.php?t=5195

There are literally dozens of ways you could go about this though, so the above is just to provide you with a baseline to tailor from. "

3 Days Ago

caza replied to the thread BMW and Energica EV news.
" BMW shows us a concept scooter with a seat not made for a human, energica shows off real bikes you can buy today in a shape you already know and love. "

4 Days Ago