Electric RMZ

[riverin]

HI, I tought maybe you guys would be interested to see what my brother and I have been working on.
2010 rmz 450 converted to electric
72v 3.6 kwh battery pack
32.5kw power

 

[VINSANITY]

Nice work - seems to demonstrate that OEM’s could build Ebola by tweaking existing designs - the battery seems to slide is the frame real nice.

How does it perform

Can you let us know the motor, controller etc that you used

Great stuff and please send a few more pictures

 

[riverin]

It is not finished yet so we haven't tested it yet.
asi bac 8000 controller
custom made battery pack

 

[Seatbounce]

This is awesome, thanks for sharing! Looking forward to the progress. I missed a couple opportunities at used Altas and am now currently looking at options to convert my 2013 kx250f to electric. I wish their was a kit available for 250-450 size motocross bikes.

 

[Mark XEMX]

That looks like a nice set-up. I was wondering if the RM frames would have enough room for the Battery packs.
What cells are you using? 18650's or flat pouch?

 

[riverin]

There is no space for battery in the rmz beacause the frame is verry narrow. The best would be a yamaha frame. Battery is made from 18650

 

[Rix]

HI, I tought maybe you guys would be interested to see what my brother and I have been working on.
2010 rmz 450 converted to electric
72v 3.6 kwh battery pack
32.5kw power
View attachment 5974View attachment 5975

Nicely done, can you post a picture of the other side. Curious to see what you did with your primary drive

 

[riverin]

Nicely done, can you post a picture of the other side. Curious to see what you did with your primary drive

juste a chain from motor to jackshaft

 

[Rix]

juste a chain from motor to jackshaft

KISS design, I like it.

 

[Thomas_AMPERA]

Hi Riverin, can you give us more infos about the motor? It looks to be a QSmotor isn't it?

 

[riverin]

Hi Riverin, can you give us more infos about the motor? It looks to be a QSmotor isn't it?

Qs motor 138 90h

 

[Thomas_AMPERA]

Qs motor 138 90h

Okay thanks, it develops around 10kW max. Previously you anounced a power of 32.5kw. How much power you expect?

 

[riverin]

Okay thanks, it develops around 10kW max. Previously you anounced a power of 32.5kw. How much power you expect?

Yes this is the continuous power however this motor has been pushed over 32kw by many people.

 

[riverin]

we finished the bike!
final weight is 255lbs but the center of gravity is very low so it feels almost like a 125 when moving it around.
since winter is here all the tracks are closed so we only tested it on the street. here is a video of me pulling a start.
http://instagr.am/p/CIZPpj7BruU/

 

[Thomas_AMPERA]

we finished the bike!
final weight is 255lbs but the center of gravity is very low so it feels almost like a 125 when moving it around.
since winter is here all the tracks are closed so we only tested it on the street. here is a video of me pulling a start.
http://instagr.am/p/CIZPpj7BruU/ View attachment 6260

Sur Insta je vois que tu est Francophone? What is your feeling compare to a 250cc or a 450cc? more power & more torque?

 

[riverin]

Sur Insta je vois que tu est Francophone? What is your feeling compare to a 250cc or a 450cc? more power & more torque?

oui je parle francais! I would need to test it on a track to really see the difference but as of now I think it is faster than a 250cc I think its close to my 350sxf in acceleration.

 

[bayodome]

Looks like it packs a punch! Pumped to see some track vids. Good work!

 

[Thomas_AMPERA]

oui je parle francais! I would need to test it on a track to really see the difference but as of now I think it is faster than a 250cc I think its close to my 350sxf in acceleration.

Okay, I can't wait to have your feedback

 

[Mark911]

What controller are you using? Did you incorporate a contactor? Appears to be using an ANT BMS, which are pretty good. What exact cells did you use? 255 is a good weight assuming the cells are packaged to handle the loads of motocross and can get the heat out. It definitely moves, but typically that not the issue, it's tuning all that torque so that it's controllable. Good job.

 

[riverin]

What controller are you using? Did you incorporate a contactor? Appears to be using an ANT BMS, which are pretty good. What exact cells did you use? 255 is a good weight assuming the cells are packaged to handle the loads of motocross and can get the heat out. It definitely moves, but typically that not the issue, it's tuning all that torque so that it's controllable. Good job.

bac8000 controller no contactor needed with this controller. Im using molicel p26. The pack should be alright. Itp push the 450 amp no problem under acceleration. And yes it needs tuning to make in controllable.