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Looking good! Such cool bikes...

I like how you think. Epure move was a good one, bummer it didn't fit well. Electric Motion stuff is neat. But so are TM's. Cool build. Thanks for sharing.

Thanks for sharing Dave. Bike looks great. What series and parallel configuration are you running to get 65Ah with RS50 cells? Is there more room in the Yamaha frame for the battery than a KTM frame?

Sensor wires, You want to shield them from the interference.

Sweet build! Love that TM chassis, such cool bikes. I don't have direct experience with the qs138 and emi, but at my day job we use braided sheathing to eliminate emi from position sensors on our electric motors. We have measured the emi with a picoscope and saw a significant reduction using...

I was watching a YouTube video by Kevin G about his KTM QS138 swap and he said there is a Yamaha application that mounts the same way, same dimensions, but is a 520 sprocket. Maybe an ATV application. Anyone know anything about that?

Great thread! Any updates after getting the battery ?

I opened the GBX65 step file in Bambu Handy 3D printer software and it looks like my 256mm x 256mm x 256mm printer will print this out.

I wanted to start a conversation about the new 3Shul GBX gearbox motors: GBX 80 Gear Motor - 3Shul Motors I also wanted to let others know I got a link to a Google drive folder with CAD for 3Shul motors. I just emailed support email on website and they sent the link: Folder link: Motors -...

I also have Solidworks and would love to spin your model for my own knowledge. I am willing to host the files at a private link for others to use. KTM753@pm.me

So much grip! Thanks for sharing.

I can't get the video clip links to work. I would love to see them.

I found the above video more objective than Ziroth's video. But this 2nd video arrives at the same conclusion about the voltage curve, NMC lithium ion... If quacks like a duck... 🦆

I still "Donut" believe him

One way to look at it is as the voltage drops the amperage goes up for the same power. What is the current limit on your controller? And then what is the voltage for that same power level at that amperage limit? At full throttle your controller's trying to draw the max power to meet the...

Saw your posts in the FB group. Good to see you here also. I did find your Maker World upload of the QS138. Thanks for that again.

Sent you an email Dave. Thanks.

Thanks for the detailed reply. Here is where I saw "lithium iron" mentioned: https://enduro21.com/en/news/industry-news/stark-future-and-wanxiang-a123-partner-for-ultra-fast-charge-batteries "Stark Future has announced a strategic partnership with Wanxiang A123, a Chinese company specialising...

A123 is a LFP battery manufacturer. The announcement says Lithium Iron and 26120 cells. Very interesting turn for Stark away from Molicel. Keen to hear others thoughts about this.

$469? Ouch. I would be looking for another option too. Do you have a newer iPhone? Some have 3D scanning capabilities.