Endless Sphere

justin_le wrote: ↑

May 31 2019 1:59am

Another oddball motor from Bafang isn't even on their webpage but is something that fits an interest of ours is this geared motor designed for a wheelbarrow.

What is the rim size on this wheelbarrow motor? Any more info somewhere?

Arlo1 wrote: ↑

Jul 18 2019 10:24am

Its fun to let people figure it out as I go

4WD

There is a street legal version of the Sur-Ron.

flat tire wrote: ↑

Jul 13 2019 10:00pm

It uses hub motors. What a POS.

POS=Perfect Off road Skateboard?

Nice design and build!

You'll probably spend more in materials and tools then buying this motor: http://www.eastgem.net/d9000.html

Like Lars already asked: why not a geared motor? My DPV (cheap Chinese Seadoo knock off) uses a geared motor. Look at Cyclone motors: http://www.cyclone-tw.com/motor.html The 650-1680W geared version might work for you?

Maybe its possible Of course it is possible. It's just a serious big project. A member on here has been building his motor and still is trying to get it to work properly. Read through his build thread to see what is needed to actually get a working motor let alone a 10kW version: https://endless-sp...

Is there an explanation to be found somewhere about this "brush timing" and how to go about it?

If you have to ask if it is possible to build your own 10kW BLDC motor it might not be such a wise idea...

Why do you want to build your own motor? For what application?

Yes there are numerous builds on E-S using downhill bikes as donors. They are ideal as they are full suspension and have a "relaxter" head angle making them ride better (less nervous) at higher speeds.
The new CYC X1-Pro motor kits seem ideal for a conversion: https://www.cycmotor.com/x1-pro

Nissan Leaf motor? Although not sure what the max. RPM is?

If it is "just to have a project" then go ahead building this hybrid bike. If you need it as transport/commuter then just buy a bigger cc petrol bike. Because the extra complexity to make it all work (and keep working) together is not worth it financially or time wise. If you just want the "electric...

Why not use a 3kW Cyclone motor on the rear axle/chain drive? Only one motor and controller needed then.
What weight and speed are you going to go with?
If the weight and speed needed aren't too high and the hills not too steep you can even use a 750W tricycle kit.

Why don't you tell or show(sketch) what you want to build? Why not electric only? Why the ICE? What riding do you want to do with it? I.e. distance, speed, (steep) hills?

Not sure what you are building exactly? Yes the electric motor will have drag/resistance when rotated without powering it. This can be solved by feeding it enough voltage at very low current to keep it spinning along with the ICE (Internal Combustion Engine). When you use the electric motor as a gen...

Ecyclist wrote: ↑

Jul 01 2019 11:51am

I'm amazed that someone who is in business for so many years can be so ignorant.
Luna is a Chinese products store, but owner is all about buying American and he has a hat to prove it.

That made me laugh.
You hit the nail on the head!

For that price i hope you're looking for 20kW peak power? Cyclone has a 18kW motor and controller offering that is $599.- + $299.- = $898.- excl. shipping and cuctoms.: http://www.cyclone-tw.com/motor.html Maybe almost the same motor from Eastgem at 15kW peak: http://www.eastgem.net/d9000.html But I...

ridethelightning wrote: ↑

Jun 27 2019 7:35am

just thought id post this for anyone who is super dedicated to keping their hub cool

Is there ferrofluid in your hub motor?

Nice build!
Is there any more info (build thread) on the Formula Student car in the back ground? Is it electric?

Very nice result :thumb: But you don't want a belt as in the original ICE scooter CVT kind. That would cost a lot(!) of efficiency resulting in a lower range and top speed. If you want a belt then get a HTD belt and pulleys to replace the chain and sprockets that you built in the casing. I still thi...

Antenor wrote: ↑

Jun 24 2019 4:15am

Anyone knows in Europe the best price for a surron?

https://suchen.mobile.de/motorrad-inser ... 87795.html
Street legal as a moped in red or black for €3985,- incl. tax.

This motor with gearbox is mostly suited for ATV/quad/cargo 3 or 4 wheelers IMO. Not for narrow 2 wheelers/bikes.
The fact that you only need a simpler/cheaper battery pack to be able to haul heavy cargo and/or tackle steep hills by selecting a lower gear is the selling point of this combination.

Good result!
Just a shame that a knowledgeable guy like him seems to build a battery without cell holders but instead by glueing cells together and not using extra protection rings on the positive terminals. That doesn't appear very professional.

gtuske=try_all?
Or are you dropping the price for the seller hoping he will bite?