help choosing the correct motor

[potzkin]

hello.

im interesting building an e bike.

after a long search trough this endless info pages i really don't know in what direction to go...

first i like to mount it on soft tail mountain bike (pre owned one).
im coming from the off road motorcycle world so i like to build something strong enough so i can clime hills go wheelie draft and so on.

the easy setup of hub motor is very attractive. i bump in some motors like golden motor piy3 , Crystalyte 5305, PHOENIX II 4840 ,BMC v2 did i miss something?
and on the other hand i watch some motch more performance videos with mars motors also i look at golden motor site and found HPM5000B witch looks good.

i also thought of double cyclone 1200W .. does it worth any good?

my question is does any of this hubs compares to any mars or goldenHPM5000B motor?

after i will find what motor ill use i can figure out how much batteries i need and what controller..

[dogman]

Well, since you are saying a motorcycle with pedals is what you want, I hope you have some $$

Start reading threads about bikes people are building to go racing in southern california, and reading about hubotors from Greyborg. That's the cutting edge people.

The lesser stuff satisfies guys like me, that are happy with 3-4 hp. Sounds like you want more. A 40 mph ebike is a thrill for us, but it still won't wheelie. Only 3000w.

[John in CR]

High power and slow climbing of offroad riding, a hubmotor probably isn't going to do the job, though there are exceptions. Zappy runs a heavily modded Magic Pie off road, but in what looks like an 18" wheel. That's bike measurements, so outside diameter, not rim diameter like a moto. A very light build with less power that a motorcycle, but less than half the weight is a unique riding experience different in good ways from a moto. For real moto performance, you need to take the motor out of the wheel, and buy a lot more batteries. You probably need the 10kw GM motor instead of the 5kw version to head toward true moto performance.

John

[potzkin]

so what is the most suitable hub for this job?

[dogman]

The one that is not a hub. I agree, you want a zero motorcycle, or equivilant.

But currently the most powerful hubmotor I know of is from Greyborg.
http://www.greyb.org/greyborg-warp.html
This doesn't seem to be a selling webpage, but this is the man. He's in Croatia.

Here is the site for the guy selling the motor in the USA, if you are in USA.
http://greyborgusa.com/

If nothing else, that site has the information you want on the most powerfull hub motor that fits a bicycle. This one should wheelie.

But one more time, the performance you seem to want is found on chain drive electric motorcycles or bikes.

[potzkin]

it looks superior..... but unfortunately i can only import motors via china... due to Damm law in my country...

[neptronix]

That is strange.

Then the first vendor i would recommend is cell_man. He ships straight out of China. And the price isn't too bad because there isn't an additional middle man + shipping cost VS buying from outside of China.

http://emissions-free.com/

[potzkin]

That is strange.

Then the first vendor i would recommend is cell_man. He ships straight out of China. And the price isn't too bad because there isn't an additional middle man + shipping cost VS buying from outside of China.

http://emissions-free.com/

yes i look at his motors but it seems that he have only 500W hub's..

[neptronix]

Yeah well - how fast do you want to go?

I push my 500w MAC to 2500w peaks and 1500-2000w continuous.

[potzkin]

Yeah well - how fast do you want to go?

I push my 500w MAC to 2500w peaks and 1500-2000w continuous.

something around 60KPh..and i need it to be able to clime any hill.

also its very important to me that the motor will last long..

[neptronix]

mhm. mhm.

That's difficult. You probably want a big honkin' crystalyte if you can somehow get it direct from China, then.

I'd say the magic pie would be good here, but, can't make any guarantees that it will never die.

[potzkin]

does cyclone double 1200W worth any good?

[Wizzbit]

does cyclone double 1200W worth any good?

I think this would be a good choice for off road, has more power than hubs but its louder.

[John in CR]

Double hubbies in small wheels for 2wd. That has the potential for 60kph and climb too. Plus it works better than any 2wd motorcycle ever has. A magic pie (with out of hub controller) in front and one in back, with the build on 18" rims. I don't know about jumps, but it would definitely climb like a goat as long as you aren't too much of a fatty like me.

[potzkin]

what controllers and how much butteries are recommended for tow cyclone 1200W

i saw that http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idproduct=9174 are recommended...

[neptronix]

Those cyclone kits are not known for being reliable at all, probably are the least reliable kit you can buy. >1000w through the chain is really problematic. All the crap hardware they include makes things worse. Just FYI.