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If the motor is toast...I would not recommend saving it as if it is "repaired" and some how delaminates or separates it can cause potentially more damage in the motor housing. Curious to see how its built though....

In most cases the electric motorcycle/dirt bike is similar with traction and weight characteristics of gas bikes. When we took the Altas out on the dirt, the MX33 tires worked out with the best balance of performance and power delivery. On the SM, we used the Rosso II tires and those were...

Uhm that is a clear sign the motor has packed up. Either the bearings are toast or some how the motor windings failed.

Hi All, I have one R pack battery available for sale. Got it last year to refurbish and is fully functional. Currently the cells are all in good shape. PM me for more details on price and shipping (Dont mind the white bits, its Styrofoam)

Its technically both. But the A pack BCU is more suspect to the DCDC dying (which is why this happens)

@JP racing we should get to fixing that top cover

It was a major concern, but over the past few years the parts are pretty repairable. Hardest one is the A pack top cover, but the remaining parts for the R packs along with batteries are replaceable, repairable and usable.

A lot of newer EV bikes use not so "smart" chargers...one nuance of the Alta SM charger was that its really picky with grounds and also voltages...I recall I used my Alta SM to test some electrical outlets at a site in SF I used to work at and it got picky with some bad 110V outlets (which ended...

There is no flasher/relay in the Alta harness, its managed by the ACM. If your going to use LEDs you have to add a resistor inline to slow them down.

No problem, keep me updated on what you do so I can coordinate appropriately. Now on your 9V battery - the ARM processor inside the ACM is able to keep the VIN and mileage data safely with a 9V disconnect (remove and replace). Also all the log data is saved on the SD card in the ACM. So...

I have some spare spacers for the 4CS forks in my spares bin I think.

@synics has your bike been updated recently? Also whats the last three of the MXR vin number?

Check the 9V battery inside the ACM.

No, Stark has to properly display the engine number. (From what it looks like, that number might be too low for a DMV admin to verify)

@Number Six you might want to note that the connector at the end of your throttle is not the standard Alta connector and would need to be re-terminated.

PM sent

So I believe this information is tucked away in this forum, but the throttle issue is always a problem (should be sticked tbh) @Philip (2100664-04 THROTTLE ASSEMBLY, OVERMOLDED) - These are for early VIN Altas (MX specfically, VIN99 is the rough cut point. (This is the one @F451 posted)...

Thanks for the explanation, PM Sent.

What Alta do you have? And when you turn the key switch on the 1st time what does the bike do? Turn off immediately? Could be a potential BCU issue

The HK chargers were around 2018-2019, and can be used on older bikes with a firmware update.