Search results

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...

We run most of our batteries with the BMS used only for Charge control. The discharge low voltage control is done with the Controller. I use the Votol controllers, and the have a Soft Undervoltage setting (which I set on my 20S12P battery at 65V), it slows the motor way down but still runs...

I don't know if this link will work but here is some information that is on the "Stark Varq Electric Motocross" Facebook forum...

Here is Episode 5

Here is Episode 4

Here is Episode 3

If you are an AMA member, and plan on racing ANY AMA race , I'm sorry, but we are explicitly excluded for any AMA competition. A friend with a Yamaha conversion wanted to try to qualify for Lorreta Lynns, and was told he couldn't. He called AMA and got Mike Burkeens on the phone. Simple...

Subsonic, I have to agree with Bayodome, no way are those mounts going to last. Beside not lasting, the motor is too high, the chain will wear out the rubber chain guides on the swingarm, while being very noisy. These motors are tearing out well designed mounts. The torque is huge. You are...

I really like your upgraded plastics kit. My next build is a 2005 CRF. I will see if he wants to go with that kit .

I buy my sprockets from lithium-king.com. Buy the $50 one, it is the best. 13 or 14. Will fit and work fine.

Here is the finished rear mount. Not the prettiest welds, but it has worked flawlessly for over a year on the moto track. The supports going up are to support the bottom of the battery tray. You don't want the battery touching the motor, HEAT. Here is mine at a race last weekend. The Moto...

A couple comments, 1mm high for the sprocket is fine, but make sure it is solid and use all 4 bottom bolts and the rear boss mounted to the Swing arm bolt. No rubber mounts. There is no vibration, but these motors put out a ton of torque. Here are some pics of the controller mount. What...

Thanks guys. It is fun to help and see all the success and progress we are all making. It is rewarding to see and help people that chose the electric motorcycle route for personal physical limitations. It has allowed them to continue in this sport. And they are just fun to ride!!!

Unfortunately, They were not allowed to race at the Paris race. Here is the story, or interview with Josh Varize. https://www.vitalmx.com/features/josh-varize-talks-stark-vital-mx-transcript

Yes it is in Florida.

If you really want an electric bike for this kind of racing, check out the bike XEMX1.com is building. The motor controller combo can get 50+hp, but the Quick Change battery is legit. 10-15 seconds to change. The kits are built for the newer Yamaha YZ250-450F bikes.

It is 12S7P here is a picture of a the battery taken apart.