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Carnut1100
27 May 2017, 1542
Hi all.
Long time lurker, ex electric car owner (Mitsubishi i MiEV) and about to be bike converter...

I've got a Honda Hornet with a blown engine...originally fitted with MC22 engine from a CBR250RR but in a naked frame.
https://en.m.wikipedia.org/wiki/Honda_CB250F

My brother blew the engine racing an R6 over a mountain...
Bike is in good nick otherwise, and importantly it is free and LAMS approved (Learner Approved Motorcycle Scheme) which means I will be able to legally ride it.

To keep LAMS rating, an electric bike needs to be below 25kW.

Batteries are sorted, will be using lightly used pouch cells obtained at the right price from a friend.

Keeping chain drive so no hub motors, and I want a top speed of 130kmh at full tilt so I can use the maximum speed limit on local freeways of 110kmh without being at max.

Voltage will probably be 72-96 range depending on motor and controller chosen.

Budget for the motor is tight, cheaper is better, but a couple of hundred to make a difference between a slug and a nice bike is going to be found if needed.

From some reading I'm thInking the ME0913 with a Kelly KLS7230S might be a good combo...motor limited to 30kW peak, but controller limited to 21.5kW keeps it under the legal limit, and has regen capabililty.

Is there anything I'm missing?
Is there a better option?

frodus
30 May 2017, 1032
I have a friend that has an HPEVS AC12 motor with a Curtis 1236 controller (AC) at 350A for sale. It's small, and just around 25kW peak. 72V (108V max battery side). I can throw in a lead acid 72V charger for $50 if you want it.

Where are you located?

Carnut1100
01 June 2017, 0545
Australia

DRZ400
01 June 2017, 1240
How much is the $500 motor and controller? How many hours? My agni ate its brushes..... no one stocks them.

marcexec
01 June 2017, 1251
Shameless plug: https://endless-sphere.com/w/index.php/Electric_Motor_Selection - maybe you can find something that fits there, too.
Good proposals in this thread already. Have you considered hub motors, like Enertrac, QS Motor? They make for a bloody easy mechanical fit - see the end of my thread at ES.

Carnut1100
05 June 2017, 0425
Have looked into hub motors, but the bike has matched and good looking alloy wheels and I'd like to keep them, along with the ability to change gearing easily so I'd rather go mid mount chain drive.

AC12 is a good option...bit dear to get new, but secondhand is possible.

At the moment I'm probably 3 months away from pulling the trigger on a drive package. I want to be ready to go at that time though and hopefully have the mounts designed in CAD and be ready to go when the funds pop up.
Paying for a new transmission for my wife's car and new tyres for both cars and registration fees and so on...but the budget has room for e-bike bits in about three months or so.

frodus
05 June 2017, 0953
Carnut,
I can ship internationally, no worries. Used not many miles on it, under 500 I think. I also sell HPEVS new if you decide to go that direction.

It's a good motor/controller combo, pretty mature, no tuning required. Easy (only bearings) maintenance. Lots of support in the controller for reading with OBDII and configuring the throttle and other parameters.

kwikas
05 June 2017, 1734
Carnut,
I can ship internationally, no worries. Used not many miles on it, under 500 I think. I also sell HPEVS new if you decide to go that direction.

It's a good motor/controller combo, pretty mature, no tuning required. Easy (only bearings) maintenance. Lots of support in the controller for reading with OBDII and configuring the throttle and other parameters.

Totally Carnuts call on this one but if he decides not to buy this 2nd hand motor then I'd like to discuss it further with you frodus. I'm down here in Melbourne Australia and am getting my project underway as we speak. Thanks

frodus
05 June 2017, 2158
Sure thing. Trying to keep the motor in the family. Not making anything off it, just helping a friend who built it and hasn't ridden in a while.

Will get some more info, and after next week, strip it off the bike and check everything still works as intended.

Carnut1100
07 June 2017, 0627
Hey, if kwikas has the cash waiting before I do, go for it.
What sort of $$$ are we talking about?
I like the HPEVS stuff from what I've seen, but it's a little outside the bike budget to buy new I think.
Flat out for next couple of months getting one car tidied up and sold, another one getting new transmission and going back on the road, and paying a bunch of bills but then I get to spend some money on making a toy.....

frodus
09 June 2017, 0808
Looking at $1500 USD for the motor/controller kit with harness and display. Not including shipping. Consider this is motor and controller, and that you're looking at 500-1000 for a motor and another 500-1000 for a controller if you decide to go brushed.

I reached out to my buddy to see if we can take it out of his scooter, and get it prepped to ship/test it again.