Converting motorcycle into electric

[cryzymotor]

Hi Guys,

Now i converting a motorcycle into electric,target as below:
motor:3kw
controller:72V50A
battery:72V15Ah(Samsung25R cells)

It is safety enough for the frame suspension fork?

Anyone show me some good idea?

thanks

 

[John in CR]

I thought it was a tiny pit bike until I saw it has a 17" front wheel. I wish I could find something like that here. One think you'll need to do is join the downtube with the frame somewhere near the swingarm. The design used the gas motor to join the two.

I think the type of motor you use should be determined by the type of riding you do. If it's for off road more than just very light trails, then I wouldn't go with a hubmotor, at least not in the wheel.

 

[silviasol]

I thought it was a tiny pit bike until I saw it has a 17" front wheel. I wish I could find something like that here. One think you'll need to do is join the downtube with the frame somewhere near the swingarm. The design used the gas motor to join the two.

I think the type of motor you use should be determined by the type of riding you do. If it's for off road more than just very light trails, then I wouldn't go with a hubmotor, at least not in the wheel.

Interesting. Keep updating! Looking to build one myself if it is cost effective and can ride one on the freeway.

 

[macribs]

Interesting. Keep updating! Looking to build one myself if it is cost effective and can ride one on the freeway.

You guys are lucky. In Norway you can't hardly get plates on anything without crash tests, TÜV approvel and costly engineering testing verifications. Converting a motorcycle into EV will most likely not be legal and get plates. But I guess as people do get plates in Germany for bikes registered as 4 KW mopeds that would be an option also in Norway. With 45 km/h top speed.......

 

[cryzymotor]

Oh,guys,
I have finished some important work.
Now the motor if finished.
And i ride to top speed 65km/h.And it is very powerful for cross-country. It take me fly down the stairs.

 

[cryzymotor]

next work is make a battery case or cover.
Any good ideas?????????

 

[silviasol]

Looks nice. Wish I had a garage to work on a larger bike like that. What is it like taking a jump with that thing? Or do you not dare try?

 

[cryzymotor]

Top power is more than 4000W.
I am 175cm and 65kg weight,I tried many times that up and down stairs easily.And suspensions performs well.
On the unsurfaced road,jump freely.
I will ride in more bad road conditions.
When all this cross e-motor is finished,we will make bigger 4000W-8000W motor in 18' rear wheel and 21' front wheel.It is will be for taller more than 180cm rider.

 

[cryzymotor]

all work finished.
picture here.

 

[cryzymotor]

top speed more than 80km/h,take me fly
3 speed control.
72V20Ah battery+50A BMS+72V50A controller

 

[liveforphysics]

Nice job on your build!

 

[r3volved]

Nice
That looks like a fun little bike!

 

[dirkdiggler]

I'm still looking into doing something similar, either a motorcycle conversion or doing the LMX, motoped style. I don't really need to go over 40mph, but want something light weight that can handle rough terrain and hills. I've searched through all the aliexpress listings for the motorcycle kits. Where did you end up buying yours? Most of the ones I looked at had pricing around $800. That's enough for me to want to make sure I get the right stuff on my order.

 

[cryzymotor]

I'm still looking into doing something similar, either a motorcycle conversion or doing the LMX, motoped style. I don't really need to go over 40mph, but want something light weight that can handle rough terrain and hills. I've searched through all the aliexpress listings for the motorcycle kits. Where did you end up buying yours? Most of the ones I looked at had pricing around $800. That's enough for me to want to make sure I get the right stuff on my order.

i select motor frame just to have enough strength for high speed(over 80km/h or 100km/h) and jump.if you just want a lower and no jump,you can select a aluminum frame light,i dont weigh my total bike(maybe less 50kg).

most kits we buy from motorcycle parts market not from alie or other web,because we can not know all deltail info from the online market.

800USD maybe just for a 1000W high speed motor,torque too small can not handle rough errain and hill.My motor is 2000W at least,top power more than 4000W.And i think 800usd maybe not including battery!?

 

[torqueboards]

Awesome bike. I want one of those. How much did you spend on your build? How heavy is it holding? Any issues with climbing any steep hills?

 

[dirkdiggler]

I was looking at a 5kw motor kit that includes the hub with moto rim and sine wave controller.
Something like this:
http://www.aliexpress.com/item/For-...-5kw-motor-kits-made-in-china/2042845702.html

No batteries for that price!

 

[cryzymotor]

Awesome bike. I want one of those. How much did you spend on your build? How heavy is it holding? Any issues with climbing any steep hills?

Hi
All bike cost me 2200USD.
hub motor:480.0USD
battery:800.0USD
battery case:90.0USD
controller:100.0USD
frame + front wheel + tires=600.0USD
others:130.0USD


and i have not weigh the whole bike(should be less 50kg).I have just ride some stairs for several times,feel very good,no clumbing any steep hills yet for we have snow in my place,we will take some test once possible.

 

[cryzymotor]

I was looking at a 5kw motor kit that includes the hub with moto rim and sine wave controller.

if 800USD,it is better for Crystalyte kits,TC motor + 50A controller + others,maybe a little more than 800,but i think the TC motor is good enough.If you want,i like to ask Crystalyte Kenny contact with you.He is my good friends.

 

[cryzymotor]

some test