E-bike + carbon frame + 52V. 18650 + BMC motor

Bengy22,

After contac the em3ev, they reply to me in 30 minutes.... its like you said. Its the mecanic atach not the battery.
I put 4 rivnuts and will atach the battery with a velcro or something like that.

Thanks for your sugestions.

Luís.
I had a feeling, glad to hear it worked out and with 4 rivnuts and a velcro around the battery I don't think you will have issues unless you start taking huge jumps haha!

I look forward to viewing the progress of the build.
Ben
 
Have you decided what brakes you plan to use and how many amps you are going to push with that controller?
Hi Bengy22,

I already have the brakes. Magura mt5 with 203mm discs.
The max I can push with this setup is 3500watts.
For now, I will limit, via controller, to 2000 watts. I think is ok, and problem free.
The first test drive is in sight.

Luís.
 

Attachments

  • 20230425_224143.jpg
    20230425_224143.jpg
    1.8 MB · Views: 10
  • 20230425_222941.jpg
    20230425_222941.jpg
    1.4 MB · Views: 9
  • 20230425_223446.jpg
    20230425_223446.jpg
    929.7 KB · Views: 11
  • 20230425_221717.jpg
    20230425_221717.jpg
    1.2 MB · Views: 15
  • 20230425_223643.jpg
    20230425_223643.jpg
    2.7 MB · Views: 12
I wish I had gone mt5's on my current bike, I've heard they offer great power! I might do a shigura setup as I upgraded my cheap shimanos to deore levers so I would just need to source some calipers, but for now mine are fine and I've also got a new bike in the garage so the ebike isn't going to see as much use for a bit.
3500w sounds fun, why limit to only 2000w? I think that would be too tempting for me to not do, my bbshd is 3500w and is wonderful!
Do you have an estimate on the weight of the bike?
And have you done a test ride yet now?
 
I wish I had gone mt5's on my current bike, I've heard they offer great power! I might do a shigura setup as I upgraded my cheap shimanos to deore levers so I would just need to source some calipers, but for now mine are fine and I've also got a new bike in the garage so the ebike isn't going to see as much use for a bit.
3500w sounds fun, why limit to only 2000w? I think that would be too tempting for me to not do, my bbshd is 3500w and is wonderful!
Do you have an estimate on the weight of the bike?
And have you done a test ride yet now?
Hi Bengy22,
2000w is fine. Not to much stress on battery and controller. No heat...
The weight, around 20kg.
Yes, make a small test ride. The combo is very good. Nice motor. I think I can climb everything in my way. A lite bit noise...

Luis.
 

Attachments

  • 356682325_1940726336356695_8657503012061018032_n.jpg
    356682325_1940726336356695_8657503012061018032_n.jpg
    391 KB · Views: 10
  • 356596596_282515030972296_8527269157228830451_n.jpg
    356596596_282515030972296_8527269157228830451_n.jpg
    322.3 KB · Views: 11
  • 356648863_1640321126465444_3164664156771282502_n.jpg
    356648863_1640321126465444_3164664156771282502_n.jpg
    380.2 KB · Views: 11
  • 356585673_864956351856290_6116101728716809711_n.jpg
    356585673_864956351856290_6116101728716809711_n.jpg
    376.9 KB · Views: 11
Hi Bengy22,
2000w is fine. Not to much stress on battery and controller. No heat...
The weight, around 20kg.
Yes, make a small test ride. The combo is very good. Nice motor. I think I can climb everything in my way. A lite bit noise...

Luis.

I'm never satisfied with the power I've got, always need more for the ebike haha. I got a sport bike which helps with that though. Sounds very good, 20kg is a very good weight for the power it's got in my opinion, are you happy with it in comparison to your last build? I wait for the test ride video :). Did you see the crazy guy on Facebook that water-cooled his 1000w geared hub, apparently he's aiming for 7kw 😮
 
I'm never satisfied with the power I've got, always need more for the ebike haha. I got a sport bike which helps with that though. Sounds very good, 20kg is a very good weight for the power it's got in my opinion, are you happy with it in comparison to your last build? I wait for the test ride video :). Did you see the crazy guy on Facebook that water-cooled his 1000w geared hub, apparently he's aiming for 7kw 😮
7Kw... !!!! Not for me.
My last build, was pushing 4Kw, a little more... To much weight, to much speed for a bike... tires, brakes, suspension...
This one, much less power, weight, speed... perfect. I can take a ride, like a bike....
Will do a video for sure.
 

Attachments

  • DSC_0337.JPG
    DSC_0337.JPG
    2 MB · Views: 18
  • 356708493_3385257385029026_5953562907195425853_n.jpg
    356708493_3385257385029026_5953562907195425853_n.jpg
    352.1 KB · Views: 18
Trapezoidal controller?

What is your TA solution on this one? I forgot.
No. Infineon controller. Maybe in the future...
Torque arms, I already drill for a "pinche-bolt" and I will put some "normal" torque arms. Im waiting for theme. The attach point, will be the frame, and not the disc braket...
 

Attachments

  • s-l1200-1.webp
    90.6 KB · Views: 4
Hello guys,

Working on torque arms.
Install a pintch bolt and a torque arm.
For the power, I believe it will be fine.

Luís.
 

Attachments

  • 20231008_163526.jpg
    20231008_163526.jpg
    1.4 MB · Views: 14
  • 20231008_165107.jpg
    20231008_165107.jpg
    2.4 MB · Views: 15
  • 20231008_165952.jpg
    20231008_165952.jpg
    1.4 MB · Views: 14
  • 20231008_225549.jpg
    20231008_225549.jpg
    1.6 MB · Views: 13
  • 20231014_233638.jpg
    20231014_233638.jpg
    1.3 MB · Views: 13
  • 20231014_233629.jpg
    20231014_233629.jpg
    1.3 MB · Views: 14
Back
Top