Endless Sphere

I've got over 50 A123 amp20's just waiting to drive a motor like that I think that unlike the original 273's like the one I have with the crazy high slot and pole count, and the newer 273's like Rovii's have a slot count divisible by 6. If so, then instead of split windings, I would wind it as 6 pha...

The hubs and wheels are already quite heavy, so adding some more weight to include the motors is not much of a stretch. The gains in doing away with a drive shaft, differential, gearbox, and all losses and points of failure and need of maintenance involved already far outweigh the detriment of unsp...

You guys can piss and moan about lawyers all you want, and there are plenty of lawyers that actually deserve such scorn. But, remember that it is only about 97% of all the lawyers out there who give all the other lawyers a bad name. LOL! My pick for best post of the thread, and now that the fuzz is...

Now I know to make a post quoting whatever info I deem valuable in another post. That will preserve the info in the event that this happens again won't it?

No, that's not the best place for the battery...too high and not centered, and there's no need to weight The hubs and wheels are already quite heavy, so adding some more weight to include the motors is not much of a stretch. The gains in doing away with a drive shaft, differential, gearbox, and all ...

Every motor I've opened had the magnets glued using some kind of epoxy, which quite likely provides significant electrical isolation from the back iron. I'm not sure the eddy currents of the rotor are being made a big deal on outrunners. Aren't those losses pretty minimal in relation to total iron l...

major wrote: ↑

Jul 20, 2018 1:43 pm

Myth:

Inside the wheel is the best place for the motor.

That's not a myth at all. They just need to get the motors light enough so the effect on unsprung weight is minimized. Otherwise there is no valid argument to the contrary.

... Just slap an electric motor under the hood and a big lithium pack where the gas tank was and charge regular car money! I know its not that easy and probably not profitable but its a shame we can't get an OEM grade version of the types of conversions we see people do at home. It's close to that ...

When are the trials guys going to learn to put a small hubby in the front wheel too? In that kind of riding there's no doubt that 2wd can be a benefit, and electric is the only way to accomplish truly useful 2wd with little added weight. Chain drive rear, geared freewheeling hub on front and a thro...

What will you do with the motor? As-is it's nothing more than a boat anchor, but in the right hands it can be made useful. Yes your understanding regarding current needs and Kv changes is correct in the previous post, but based on previous comments I think you have much to learn about hubmotors (as ...

I think LFP meant a 60% increase in Kv and split windings. The higher Kv means higher current handling along with higher rpm per volt. You hadn't pushed the motor to it's max current with the controller, so you're still probably ok with 2 controllers and the higher Kv. Since you didn't double Kv, th...

Hillhater, --The overwhelming majority of EVs in the world have no transmission at all, because they have direct drive hubmotors. John, we are talking about EVs..not bicycles or scooters !.... car equivalents. A "vehicle" is simply a machine used to transport people and/or goods. An "electric vehic...

Hillhater, You're off you're rocker. --EV's are extremely economical to operate and many are economical to own. My EV's have saved well over $2,000 each year for the past decade making my favorite hobby of all time absolutely free. They're cheaper to operate than a pedal bicycle, making them the mos...

Too bad you didn't get to explore the true potential of the motor using high voltage and the same current you used at the lower voltage. At least I still have a chance of taking back the top speed with a hubmotor. Of course I'll be doing it with only a 14kg motor instead of a double wide 273. All I ...

I just have trouble getting past the price, especially since I need 2 per motor. Also, if I am going to spend $700-900 on a pair of controllers, I want high voltage so I can take full advantage of HubMonster. Someday I'll get what I want and run 200V for a lightweight 40-50kw emoto.

My opinion about the world having way too many lawyers has remained unchanged for decades, long before coming down here, and in those decades there's not been one iota of evidence to the contrary. If it is now not politically correct to jokingly speak of fun ways to correct the overabundance, too F'...

Call a lawyer to come over. Then both shoot the lawyer in the head. They both feel better and help make the world a better place.

Haha, thanks for the advice! My wife is not too keen on the idea as she feels it will stop my daughter from wanting to ride her push bike. So i might have to do it on the sly :twisted: She's right, but I sure wish I had an electric motorcycle when I was a kid. You can always make it pedal activated...

Leili has been around quite a while and definitely not some garage operation. Plus, if I remember correctly they were the first in China making an enduro type frame. The delay is likely just a supply issue, though I understand your frustration since it's cutting well into your riding season. It look...

MadRhino, if the bike shops are making more profit on a sale than a car dealer does, then they're thieves as much as the manufacturers. 81forest, I never said that higher quality and R&D don't justify higher prices, but that has little to do with the price of bikes in the upper half of the price ran...

If course, all the components are reponsible for the high cost of bikes. The manufacturers are pushing the development very far and the newest tech is always expansive.... That's not why they're so expensive. They're only so expensive because enough suckers are willing to pay that much since they h...

2 words. Scooter hubmotor. I have several that take a 16" bicycle tire. DD hubbies perform so much better in smaller wheels and the lighter load to push makes real potential for an indestructible setup. Excellent, 16" would be perfect. I Will have a gander at whats out there. Tar. Will this likely ...

What's the 12v battery for? The point in using a DC/DC converter is to give you a 12V supply, so you don't need to carry a 12V battery. The battery is primarily a backup in the event of DC/DC converter failure. This system is in a three wheeler which is licensed in CA as a motorcycle so the headlig...

2 words. Scooter hubmotor. I have several that take a 16" bicycle tire. DD hubbies perform so much better in smaller wheels and the lighter load to push makes real potential for an indestructible setup.

What's the 12v battery for? The point in using a DC/DC converter is to give you a 12V supply, so you don't need to carry a 12V battery.