DIY 3D-Printed 3250W Motor with Downhill Bike. I need help please!?

Hey guys my name is Kevin and I am trying to make my own 3D printed motor mounts and gear e-bike. I have a custom downhill bike, made locally in Vancouver, Canada. Here are the list of my parts:

VESC:…AE-6-heat-sink Motor:…74-190kv-3250w Battery: ???

I am trying to make this system a mid-drive system with my own design buy using a e-skate motor. I am looking for input on building a lithum-ion battery pack. I am using a belt driven gear rational of 190KV = 16 teeth/300 teeth = 10.133 torque ratio

I am thinking of building a 12S6P battery with Samsung 40T 21700 4000mAh 35A Battery…amsung-40t.htm

My main question, would this setup on the battery be good enough for the motor and VESC. I want to provide enough voltage and current for the most efficient performance. I have some PIctures below as well.

Please let me know what you think any help will be appreciated. Thank You!

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Nice looking CAD btw

interesing project

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Would you have any advise on how to build this battery that would make the most out of this motor?

I would do some research on battery building if you’re going to do it yourself. But 12s6p is more than enough for that setup.


I see, I been doing a ton of research but I have never actually build a battery and had experience in building one. I was looking to have this motor as a starting motor then upgrade to this really powerful on later. opinions?

So I would like to build a battery that would be future proof for both motors.

Hey Allen I was curious do you have experience with DieBieMS as a BMS?