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31
General Discussions / Re: New member with torque arm question
« Last post by Bikemad on May 19, 2025, 08:21:19 PM »
Hi andto the forum.

ebikes.ca produce a torque arm that is designed to use existing eyelet mounts on either the rear frame or the front fork.

Check out the TorqArm V5 on their website or watch the YouTube video here.

You can even download a full scale drawing to enable you to print and cut out the pieces to test the fit on your bike before purchasing.

I think the V6 or V7 TorqArms would be a much better choice as they transfer the torsional force much further away from the dropouts, which should greatly reduce any chance of the dropout breaking due to metal fatigue from the bidirectional axle torque being constantly applied directly to it during both power and regen, which the dropouts were never designed to withstand.  ;)

Alan

 
32
General Discussions / Re: New member with a few questions
« Last post by Bargo on May 19, 2025, 12:10:55 PM »
As I went back to the original controller that was dead, I found out that there was a short on several places, including the STM32F, apparently something went bad, what would be a suitable firmware to dump on it for this wheel?

SMART 4 VEC INT 18A V5

33
Electric Boat Conversions / Re: Brake by reversing
« Last post by Johnculley on May 18, 2025, 06:25:58 PM »
It’s a battery level meter and quite accurate. The. Buttons are on/off and speed mode, which doesn’t seem to make any difference. You can also use the buttons to reprogram the throttle so it works the opposite way round.
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Electric Boat Conversions / Re: Brake by reversing
« Last post by Pontus on May 18, 2025, 06:23:22 PM »
On the pictures I find online it seems the trc-012 has some sort of power display. If that's the case I imagine there are more connections.
35
General Discussions / Re: New member with a few questions
« Last post by Bargo on May 18, 2025, 03:01:31 PM »
Thanks again once more Alan, much appreciate all the questions and the questions.

Regarding that diode in the photo is indeed burned, and its on the other board not the new one, the new board is fine.



Are you using a 36V battery for testing? If not, why did you change the voltage setting to 36V?

Alan

I actually plan to keep the 36v battery for it, not only for testing, or should be 48v?
36
Electric Boat Conversions / Re: Brake by reversing
« Last post by Johnculley on May 18, 2025, 08:17:29 AM »
The 010 is a round handle, the 012 has a wider flat section at the top. I had lots of trouble connecting because I followed the instructional video for the 010 😩.
I’ll have to email GM again about the shuddering. It happens around 2100 rpm and 2600r (rotor speed on the app).
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Electric Boat Conversions / Re: Brake by reversing
« Last post by Pontus on May 18, 2025, 08:13:13 AM »
I think I have the TRC010, although not 100% sure. The connection was straight forward though, just plugging in the connectors.

I also experienced shuddering at higher revs. That was due to an firmware update changing the scale of controller setting but without the actual settings being changed accordingly. That was solved by an email to GM though.

Here's my blog post about installing the throttle.
On page Google translation available. 

https://grinde-19.se/blog/nytt-gasreglage
38
General Discussions / Re: e-bike with a magic controller
« Last post by Raevin on May 17, 2025, 11:25:55 PM »
Thanks for the guidance . I looked up the motor and looks like a mini. The wheel will not rotate backward at all. I did find a broken wire (green) and spliced in a new piece but same condition. The user stated that the bike needed to be peddled to go which I assume may have been due to-the broken wire. I measured the resistance of the motor windings …each phase .4 ohms. I see high resistance between neg and each disconnected motor wire and a climbing high resistance from positive to each motor terminal.prob a capacitor charging.I will test the hall sensors next. Thx for the links to the hall sensor tests.
39
General Discussions / New member with torque arm question
« Last post by BillysMagicBikeShanty on May 17, 2025, 08:35:44 PM »
Hi, posting this to become a confirmed member. My question is, besides hose clamps, are there any torque arms which secure directly into fork and frame fender bosses? Thanks!
40
Electric Boat Conversions / Re: Brake by reversing
« Last post by Johnculley on May 17, 2025, 08:28:06 PM »
Hi Pontus. Which throttle are you using ? I have the TRC012 and was told by GM to connect all the cables. Several of them don’t fit as the plugs don’t match but the motor seems to work ok. (A bit of “shuddering” at certain revs but everything else seems ok.  I’ve only used the motor once and I’m sure there will be more things to deal with.). I have an EZKontrol controller. Just wondering if you have all cables connected. From memory it cruise, brake and alarm that aren’t connected.
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