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Thanks for the comments @VINSANITY. I have a 3D printer, but it doesn't do that big. I have to find someone to copy what I have and 3D print it. Same with the gear reduction, I am going to use the same gears, and have a machine shop build it and possible offer it up for others to buy. This...

I've shown some of the pictures of my conversion in other posts on here, but here is a little more. I started this build after having had my KTM 250F Electric conversion for quite a few years. I helped a buddy in Florida build his version of a 2014 YZ electric, but around the specs of the...

Welcome to the forum testus191. This is a great forum for all things "Electric Motorcycles". I am kind of new to this forum also, but everyone offers so much info and you can learn so much in all the different parts of the forum. I don't have an Alta, but have built 4 or 5 different Electric...

I had seen the Pohlbock before also. It is a beautiful piece. They do great work. But like @bayodome says, we need a kit that equals the Alta in performace and endurance that goes onto a proven bike and suspension. You are right also @wwmotors, we need a definition of how we can race these...

Thanks Phillip. My friend from KTM sent me pictures of a similar motor from China. But you are right, a SurRon has more power than this motor. Gear Box 200 KIT But China will have something soon, with way more power and no 4 speeds, if they are making this.

My buddy finally posted a address where you can ask him questions. I thought it was a website, but it is page with the bike picture, and an email address to post questions. Sales@XtremelectricMX.com

My buddy finally has at least a place to ask him questions. He is getting closer to having a product. Here is his website Sales@XtremelectricMX.com I hope he can help you bayodome.

My electric KTM (home built) has a Maguira throttle and Kelly controller. I had been working on it, and the throttle connection was left open. I turned the bike on while standing along side it and nothing for a few seconds, and it then accelerated with me holding the handlebars. it spun...

Will keep you posted. I went to @Mark911 Instagram page last night. I like the work you, Mark911, have done on your YZ125 Electric conversion's battery box. The motor you are using is small size for the KW output, and no jackshaft, good weight savings. What is the total bike weight and how...

I am somewhat new to this forum, I guess I am supposed to hit Reply ...

Yes that was me at Pala. Nice to connect a link to a face. Mark911's article is quite informational also. The battery heat and size, and weight are the 3 major challenges in electrifying a moto bike. My friend in Florida has been working thru these challenges. Unfortunately none of the majors...

I want to just say that this bike isn't ready for production yet. Nothing is 100 percent ready for the market. If they want to buy now, they would be helping helping the development. But, everything is more expensive now than the "KIT"s will be in the future. Hopefully he will have the web site...

I opened up the link to anyone. Let me know if it works for you. I look forward to seeing you out here again. I am going to the moto track out here on Nov7 or 8th, it is open that weekend, and Nov 21 and 22.

I have built 4+ electric dirt bikes over the last 10 yrs. I have my KTM on EV Album #3817. It gives some detail on that build, which I still ride . But I just built a Yamaha 2008 YZ along the same specs as the Alta. 50HP, an ME1302 motor, 72V 63AH 630A peak ( 420 Sony VTC6 cells), approx...

Wow, your battery build looks so professional. And so does the bike. I wish I had the resources of a machine shop. let alone that spot welder. Mine is a garage build. Why going away from the Headway to 18650? Weight and size. Just rough estimates to get 72V 675A out of the 40152S's was...

Mark, Thanks for the information. You made me think hard on all the different current charts out there, and special charts for every application. There are really none for our world. There is one that refers to Ampacity for Nickel and all metals as well as resistance...

Mark911, I have used Lipo cells on my KTM for about 8 year., Two different packs, first was Calb 40AH prismatics 10C for 48V 400A, now I have Headway 40152s 3 groups of 16. Both combos were about 52-54 lbs, but the 40152s give me 45AH but have a 15C rating for a total of 675A. My KTM is...

Thanks for the reply and great info. I am running 20s7p for 140 cells per pack. I tried many different methods of spot welding for my bus bars, but could not get the size and material I wanted to work with spot weld. I wanted copper for the conductivity and lower heat build up, but in...

What is your battery setup. I am new to this forum, but have been building electric moto bikes for over 10 years. I am building a 50hp YZ25F 2008 now with a Alta battery copy. Sony VTC6 72V 21AH 210amps peak. I will have 3 pack . Each pack weighs 18lbs total 72V 63AH 630amps. 54lbs total...