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Great Build Jeff !

KTM Throttle Body instead of Hirschmann and SOLO DL datalogging are differences I can add..

I talk to him later this day.

Why don’t bond it back? There are low temperature hardening conductive glues..

Thermal limiting starts earlier from the data I have and it’s unequal heat distribution in the pack (about 10-12 degree) which is a problem. Some spots are above 60 degree Celsius when others are below 50 for example.

I can tell from my experience that you are right. A optimised gearing will increase range and you are not slower (laptime). Both ideas are true, the amount depends on many variables.

After riding e and riding ice, i usually burn me somewhere on the ice bike when putting in the trailer..

If you use Zero motor and sevcon controller and a 5+kw battery I doubt the wheight. Will it be aircolled? Greets

They are modified Zero ZF75-5 and 75-7 Motors. Batteries are also modified Zero packs or self built 18650 packs depending on bike.

I am part of this small team. The bikes were never made for sale. They were build as testing platforms and sure for fun. The idea was, if possible, to make a comercial product. This was not possible till now due to several circumstances. The whole drivetrain was much heavier than the Alta`s...

If somebody has questions, i can answer them first hand.

Yes it is, but I should be able to "simulate" an original pack.

It does, it reduces power. It’s just depends on skills of rider and terrain, how fast or if you get there.

Hi, did you have the parts open and tooked a closer look? I don’t think it’s that easy. Yes you could save a small amount of weight at some places, but you will add it on others, like radiator/fan etc. . The battery isn’t that easy too. For the mx use you won’t build lighter than 30kg in the...

Thanks for your answers. Due to a lack of time (to many other projects & work), i did not make start this project. But i am interessted in doing it. I think it will take some weeks until i start it. Anyway i do have a good idea how it will look and work like. Maybe there will be also a few more...

So a few news.. The display sits on the bike as shown on the picture. If there would not be a steering damper, this location would be better. Everything works, it turns on with the bike, the bike runs with its can bus output, the active throttle is signalized and all data is logged. For...

Unplug the stock and plug in the new one. Thats all. The display has a few disadvantages i will post later. Nothing realy bad. I need some time for testing on the bike and than i will post the results here.

It may be possible that the inverter does have an anti wheel lock function. When during regen braking the rear wheel lock while rear brake is applied too, it could stop regen. I know this from other motor controllers, so maybe Alta has the same. Alta experts should know if this is the case

Those test are typical in automotive industry I am working in and do not indicate anything

Now I am blocked again