You’ll be fine on a surron frame but it might be a little underpowered for a 150kg bike.
Edit: @joshoujoe goldenmotor has pretty expensive offerings compared to qsmotor/siacosys
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I guess more of a sur ron but mini lol.
Here is what inspired me, I love how he just disappears on the mini, they talk about it before at 18:53
And yes I will document the battery build, but my shit talking skills are better than my battery building skills so there will be jank.
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Yeah but the motors can take way more power than the QS motor (not talking about the hub motors) and I like the idea of being able to swap the gears for the style of ride I want/ would want.
@jindra made me think of the honda grom but the electric chinese copy lmao
Lmao I’m sure you’ll do fine, as long you don’t put your house on fire or anything on fire we good. If it’s not well built we prob gonna roast you and give advices (not me but the experienced builder will)
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QSMotors are labelled in rated power, pretty much every one of their mid-drive IPM motors can do 20-35KW burst no problem, but they’re air cooled so you’re limited in the amount of heat you can shed through heatsinks. Goldenmotors definitely has the edge with their water-cooled motors but I cant see liquid cooling a motor or a controller being worthwhile unless you’re racing Valentino Rossi. The only step up from goldenmotor/qsmotor sized motors are salvaged zero motorcycle 75-5/75-7 or ME1507 which are 2-4x the weight/size and pretty much half of the efficiency since they’re meant to be run at 400V+ DC.
I’ve had pretty lackluster experiences with goldenmotor and goldenmotorcanada(stay far away) but QSmotor reps have been pretty amenable to my tall orders.
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Was thinking about making it so it also heats up the battery (only if cold temperatures)
I’m just curious about the whole lenght of the QSmotor mid-drives, thats why i was leaning more towards golden motors as they seems/seemed compact.
What issues you got with their motors?
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No problem with goldenmotorcanada motors, but their service is so fucking bad. I had to call and email 3-4 times over the course of a month to get a single response. I was just trying to get some dyno results and they sent the wrong model’s dyno sheet.
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a quick question, if using the unity in the latest vesc-tool version, battery max is limited to 100 A, does that mean the value is used per side ? i only used the unity tool up until now, and its a bit confusing which values go per side, and which are totals 
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yes
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Lol basically torqueboards when they decide to not tell anyone anything for sometime.
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I got a monster battery box, which is meant to go into a flat width-wise deck. Problem is i have a haero bro deck which has some concave to it.
What’s the best way to mark the places for the inserts to be drilled in? Middle hole is a good ~1.5cm away from the deck
Yes there is 
I asked Bruno from APS and he wrote they did a test bench and the motor got over 80A with no issue.
So this means probably I have something wrong somewhere…
Hmm, interesting then. Because to my knowledge the lower the kv the lesser the amps. But he is the Maker so he knows best.
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I think you’re right, in relative terms. But 57A is probably too low for a 6384 motor, even if it’s 130kv.
Sweet I wasn’t sure on the bend, thank you.
As for the battery wires, I am not sure why I didn’t think of stacking them lmao.
So with preventing everything from vibrating against eachother, @BenjaminF had a great idea of cutting up an ID card or some similar thin plastic to act as a protector for the battery.
Would the silicone around the wire be enough to protect it against this smooth plastic?
I actually thought of doing this, just worried it wouldn’t create the best connection. I will certainly try though.
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From wearing through insulation, yes. But if the wire/connector/battery are still smashing into each other thousands of times a day that can cause problems depending on how it’s all set up. Try to immobilize everything with foam.
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I literally have a pile of old batteries…6s3p that was my first welded pack, 10x 3p 35e fire hazards, 10s lipo from a Pedego bike, small pyramid of random cells…it just sits in the back of a shelf
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Yeahhh I could definitely see how that would be a problem 
That’s a great idea, thank you! I really appreciate the help!
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It’s all about the vibrations, man. They cause failure modes you couldn’t even imagine.
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Tell me about it, I didn’t properly secure my ppm wires to my vesc and almost got thrown off.
The connector vibrated loose mid ride and the board stopped responding.
I was jiggling the throttle when it reconnected and the board shot off. It disconnected and I lost control again. I pressed the brakes and nothing happened until it suddenly reconnected and I damn near went flying. (mind you this all happened within like 5 seconds)
Opened the enclosure to find the ppm connector just barely hanging on 
A dot of hot glue made sure that was a one time occurrence.
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One person claims a JST plug unplugged itself then replugged itself in the wrong position.
After seeing so many unfathomable vibration failures myself, it’s less unbelievable.
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