Qulbix Inspired Extreme E-Bike 100km/h

This is my lovingly crafted extreme E-bike. It was based off a Qulbix style frame and heavily modified to both suit my needs and correct a few weak points.

I’ve been tweaking and revising this bike for over 2 years and ride it everyday as my main transportation.

The stats:

Motor: QS 3000W 205 50H V3 with 4T (950rpm @ 84V)

Controller: Custom Kelly Controls KLS8430S (Thanks Fany!)

Wheels: 19″ Aluminum with 12G front/10G rear stainless spokes

Battery: 24S14P pack made with LG HG2 18650 cells (3.7KWh total)

Frame: Modified Qulbix style, 140mm wide

Shocks: DNM USD 8 Fork and DNM Burner 2 rear shock

Accessories: Front/Rear 1080P Cameras, Custom pyEC bike computer w/TJC touch display

Top speed: 105km/h

Range: Depends entirely on speed, easily over 100km

I have a brief overview video on YouTube https://youtu.be/m_7QcT4yk7M
There are some more design details on my website makestuff4.fun

Please let me know what you think. I'm always looking for ways to improve on this or my future bikes.

Nice build! I can see you've got some skills. What current levels are you running the controller at?

pwd said:

Nice build! I can see you've got some skills. What current levels are you running the controller at?

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Thanks, I do love working on EVs. I have the controller settings maxed out. It's a Kelly KLS-S controller, 300A phase current limit. I put all delays at minimum (throttle/brake delay), cranked up the loop error so you can lift the front wheel, and have a separate input for regen braking (thumb throttle mounted in reverse on the left bar, activated with left index finger), regen maxed out at 50%. Let me know what settings you are curious about, I'm more than happy to share. It's really important for starting motor current but I do have, and have for a long time, used ferro fluid for cooling (Grin Technologies).