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It is a QS138 70H V3 motor, the controller is going to be a Votol EM260S, but we will probably only run it at about 14KW or 200A. The white box represents the battery. It will be a 20S10P 21700 cell battery. We will keep you posted on the progress.

Hi Andreas, my name is Don Cox. Philip and I got to ride on a half mile flat track with Kenny Roberts, Eddie Lawson , and others a few weeks ago. . They rented the track near here Lake Havasu Arizona. We had a lot of fun. Arnie (who is the owner of bike # 37 on the AMA Progressive Flat track...

The QS138 70H V3 motor has been a strong and reliable motor for us DIY builders. They have just made some significant upgrades to that motor. Here is the information from the AliExpress website. It is hard to differentiate the new from the old. They list and explain all the improvements on the...

There are 2 motos for the E-Open in the YouTube . At the 40 minute mark, and at the 4 hour and 10 minute mark

The E-Open class is now in the Daytona Vintage and ATV Supercross just a couple of days ago. There were only 3 bikes in the E-Open race. Matt Burkeen , Derek Timm and I didn't get the third persons name. Matt got his first taste of riding an E-Motorcycle just a couple days before this race, If...

Interesting video, I came across. It is Matt Burkeen, son of the AMA official mentioned at the beginning, test riding the Stark Varq. His dad, Mike Burkeen, is actually there watching him ride, and waving at his son in the car on the way out there. I think it might be good for Electric bikes...

Since the last posts I did on this link, I have built almost 15 electric bikes. A lot of KX80,85,100's, a YZ85, and a bunch of full size KTM's, Honda's and Yamaha's. And a couple of those builds started other builders. They have each done more than 5 bikes each, it is an infectious hobby...

A-iPower GXS7100iRD 7100W Dual Fuel Inverter Generator Costco has this on sale for $999 as sale price. I think even at $1299 is a good price. The sale isn't going to last very long.

I just saw this thread, and don't remember ever seeing it, but I'd like to put in my 2 cents. I have been using and working with Austin and the crew at Electroandcompany.com for quite a few years. All my experiences with them have been, good, honest and responsive. I have heard from others...

Alessandro, Glad to help you. What year and model Honda's are you going to modify to electric. I have done this 2023 CRF and I am right now starting a 2005 CRF450R. As Bayodome mentioned Electro and Company is a great way to go. On this forum a guy just finished a Honda build of a 2006...

50AH at 72V is about 3.6KW of stored power. On the smaller bikes (KX80,85, 100, YZ85, etc) it takes about 100W per mile on trail riding, so the 20S8P battery we put in the smaller bikes is 2.4KW and 100W per mile gives you about 25 miles. We have gotten that quite often. More hills , harder...

I have 20S12P for 50AH. I actually have it split into 2 x 20S6P packs, so I can charge them faster at the track with 2 x 120V 15Amp chargers. It is pretty tight in the YZ frame. Here are some internal pictures of the battery. 10 x 6 times 4. Chi battery Systems sells a battery for Surrons...

Yes they are they are about a 80-90A fuse. It is the same area as a 1mm diameter copper wire. It has been empirically tested for that rating. The main bus bars are .4mm x 8mm copper strips which carry about 400A, also tested empirically, equivalent to a 2mm diameter copper wire. We have...

Did you buy one of these? They run good. We are running the tune that Austin is putting in this model. It runs real well with the EM260S controller, I anticipate it running better with the Tru Zapper at 35KW. We are at 28KW now and that is good, almost too much for my skill level.

Yes, doubling the battery might burn it up. The motor can usually handle more wattage for a while. I take the 100W Razor , leave the motor that is in it, and put in a 250w controller, and up the battery from 24V 5AH to 29V lithium 10AH. I don't see the controller in your video. Is it in the...

Here is his first race with the bike .

Thanks for the updates.

Hey F451, what are you riding right now? There are a few of us out there that are modifying existing great bikes ( YZ250F, 450F, CRF's KTM full size, old and new, frames) into some really fun track bikes and trail bikes. I have built quite a few, and I they are so fun. I built a 2017 KTM...

Here is the Aliexpress link. I use this size since we only use it for charging. I use the 20S version, 80A https://www.aliexpress.us/item/3256805881158602.html

Have you looked at the Molicel P42A cells. I get right at 40A out of each cell. I can test them by watching my max current on one side of my battery or the other side. I have 2 20S6P batteries in my 2014 YZ250F. I can select one or the other, and or both, and I can see about 240A out of...