Enduro 2005 Crf Build

[MotoRider14]

Hi All,

I have been interested in building an electric motorcycle for awhile. I have been riding enduros and hare scrambles for the last 10 years fairly consistently in the B/C skill range and currently ride a Beta 300rr.

My plan is currently on a 2005 CRF 250R:

• QS165 60H
• ND961000
• Amorge CRF 450 Battery 96V 50Ah RS50 Cells

Below is how that is all kind of laying out. The 165 motor kicks it up a bit compared to the rest of the 138 builds I have seen. I would have the cables exit out the rear. I also believe the battery case would potentially poke through the top of the fuel tank so i may have to design and print/fabricate the finishing cover.



My target use case is:

• Riding around my parents property and ohv areas.
• Competing in Hare scrambles, 30 miles ish 20-30mph avg
• Let my friends ride it and be wowed
• Stretch goal, Competing in short enduros 40-50 miles, The long ones are 70 plus and will be done on my 300 18mph avg plus higher speed transfers
• Stretch goal, Commute to work 20 miles on surface streets if i figure out a MC title route. 55-60mph range

I arrived at 96v for better high rpm performance for potential commuting. I also have built and flown FPV drones and the difference between 6s and 4s is fairly significant and i could only imagine a similar level of performance increase. Amorge also didn't really seem to care on pricing between the voltage levels. So the main cost was the controller.

One of the main things i love about my 300rr is the low end so i arrived a the 165 as a higher torque option. I also was influenced by the dust moto using the same motor in there prototype bikes.

As I was preparing to spend some money and get out the mock up phase i began question if i was over building a touch and if the qs138 is all i need for my use cases and could make the build a touch more clean. Does any one have input on the clutch style pop on the 138 vs 165?

Appreciate any input.

 

[VINSANITY]

I built a 96 volt bike with the ND961000 controller and Amorge 96 volt 45 amp/hr battery (molicel p45). The power is perfect, you will love riding your bike.

I had all kinds of problems with FarDriver controller with sudden cutting out. I had to upgrade to the EBMX X9000 V3 which is fantastic.

The best I have done for range on road is 30 miles and that was keeping it around 35 mph with a few 50 mph bursts. Off road I’m getting 20 miles range, aggressive trail riding in sandy conditions.

Range is dis-appointing, I have ridden with lower power level and it doesn’t help very much.

The bike is the best I have ever had ( had an Alta for reference) totally addicted to riding the thing. Just need to find a way to increase battery capacity, hoping the Molicel P60 become available soon.

 

[VINSANITY]

Also the QS138 V3 has all kinds of power and I have abused it pretty good in 100 degree weather, so far no issues with about 1000 miles.

 

[fmxxx666]

That battery mock looks familiar to me
Have no ideas about the 165 but if it would be so much better more ppl would use it

I can only vote again and again for the 138 I have put it to use quiet a bit and it never let me down. Battery is your only limit in this world. Go as high Volts are you can. I just went a step up from the usual 72v guys and build mine as 22S (81.4v) as this was the max the controller I had planned supported otherwise I would have gone higher for sure. You really see that difference in Acceleration and top speed. So 96v is a good choice.

 

[Struggle]

I’ve not ridden the 160 but there’s no lack or bottom end power with the 138, and it’s probably more efficient.

There’s no way you’re going to get that kinda range out of 50ah unfortunately. I’m building a bike for the same hare scramble/cross country races and distances that you are and I’m hoping I can finish a 1.5 hours race with the 80ah total of battery I will have. I’ve got a 34ah in mine now until mine from amorge gets here, and I get 10-13 miles of aggressive trail riding, and about 16-18 miles of more casual trail riding.

 

[EDR1]

I built a 96 volt bike with the ND961000 controller and Amorge 96 volt 45 amp/hr battery (molicel p45). The power is perfect, you will love riding your bike.

I had all kinds of problems with FarDriver controller with sudden cutting out. I had to upgrade to the EBMX X9000 V3 which is fantastic.

The best I have done for range on road is 30 miles and that was keeping it around 35 mph with a few 50 mph bursts. Off road I’m getting 20 miles range, aggressive trail riding in sandy conditions.

Range is dis-appointing, I have ridden with lower power level and it doesn’t help very much.

The bike is the best I have ever had ( had an Alta for reference) totally addicted to riding the thing. Just need to find a way to increase battery capacity, hoping the Molicel P60 become available soon.

I have a 2018 YZ250F QS138v90 and an Amorage 21S 75AH. And a Votol EM260S? (I think) controller which is the weak point. The EBMX V9000 barely fits behind the rear shock. A little too long. I have the EBMX x9000v1 installed on my Sur-Ron with a EBMX 20S 42AH 72V battery 6AWG Battery wires and it cuts outs with the slightest amt of throttle. My ASI BAC8000 with EBMX Config never cuts out. So I’m afraid to try the x9000 on the YZ250F.

 

[VINSANITY]

Recall the EBMX X9000 V3 has increased voltage and other improvements vs V1 or V2. The older versions maxed out at 72 volt I think. I’ve got my max power set to 40 KW and 9000 phase amps which is slightly below max. - so far so good.

 

[MotoRider14]

That battery mock looks familiar to me
Have no ideas about the 165 but if it would be so much better more ppl would use it

I can only vote again and again for the 138 I have put it to use quiet a bit and it never let me down. Battery is your only limit in this world. Go as high Volts are you can. I just went a step up from the usual 72v guys and build mine as 22S (81.4v) as this was the max the controller I had planned supported otherwise I would have gone higher for sure. You really see that difference in Acceleration and top speed. So 96v is a good choice.

Yes, your build pictures were definitely helpful. Miranda from amorge immediately suggested that battery design. I did notice in your build you had 286cells 22s13p and laying it out myself I could probably fit 286 cells vs the 260 the had listed in the spec sheet 26s10p. It may be worth asking for a 26s11p 96v55ah battery and focus on putting it as low in the frame as possible with the 138 motor. Below i layed out 146 cells in one layer with the ant 400 amp bms, so 292cells with room to spare within that foot print.

I built a 96 volt bike with the ND961000 controller and Amorge 96 volt 45 amp/hr battery (molicel p45). The power is perfect, you will love riding your bike.

I had all kinds of problems with FarDriver controller with sudden cutting out. I had to upgrade to the EBMX X9000 V3 which is fantastic.

The best I have done for range on road is 30 miles and that was keeping it around 35 mph with a few 50 mph bursts. Off road I’m getting 20 miles range, aggressive trail riding in sandy conditions.

Range is dis-appointing, I have ridden with lower power level and it doesn’t help very much.

The bike is the best I have ever had ( had an Alta for reference) totally addicted to riding the thing. Just need to find a way to increase battery capacity, hoping the Molicel P60 become available soon.

The EBMX controller looks very tempting, but the price is pretty high. I have a Kona Honzo with a CYC stealth mid drive that uses a very similar if not the same "X7" controller platform. I am also interested in it for the e clutch option, and the novelty of the wheelie control.


Overall from the comments i am leaning towards beefing up the battery and potentially going with the well tested 138

 

[VINSANITY]

For the Honda frame I would be curious if this shape at 9.5 inches wide would be more capacity than what you are proposing. If you figure out the volume of both shapes that would determine which shape would have more capacity. This would be the approximate size you could fit if you used the QS 138.