Dual hub e-bikes

[saneagle]

Two small motors are slightly more efficient than a single small one, and about the same as a single big one. Don't ask me why, but that's the result of the test I did over a couple of hilly rides, when I did lots of experimentation with two motors before deciding that one more powerful motor is better than two with less power because of other reasons, like expense and complicated installation. Basically, there are no tangible advantages to using two motors other than better grip on slippery surfaces.

 

[Sturmey]

Two small motors are slightly more efficient than a single small one, and about the same as a single big one. Don't ask me why, but that's the result of the test I did over a couple of hilly rides, when I did lots of experimentation with two motors before deciding that one more powerful motor is better than two with less power because of other reasons, like expense and complicated installation. Basically, there are no tangible advantages to using two motors other than better grip on slippery surfaces.

I have to say that I am very happy with the reliability of the hub motors. My Yose 350 rear has 42000Km clocked up and has never been opened. The Xf07 has slightly higher mileage and I open it once to replace a wheel bearing that I was able to buy from my local auto spares. The inside of motor looked perfect with no discolouration of windings or signs of overheating. Both motors seem to work well when they are not overheated/overworked or stalled on hills. I also still have the original freewheel working on the Yose after all this time and the chains seem to last a long time.
My ideal would be to replace this setup at some stage with a single hub motor rather than a mid drive. But is there anything readily available out there that will give the same climbing ability and reliability?

 

[saneagle]

I have to say that I am very happy with the reliability of the hub motors. My Yose 350 rear has 42000Km clocked up and has never been opened. The Xf07 has slightly higher mileage and I open it once to replace a wheel bearing that I was able to buy from my local auto spares. The inside of motor looked perfect with no discolouration of windings or signs of overheating. Both motors seem to work well when they are not overheated/overworked or stalled on hills. I also still have the original freewheel working on the Yose after all this time and the chains seem to last a long time.
My ideal would be to replace this setup at some stage with a single hub motor rather than a mid drive. But is there anything readily available out there that will give the same climbing ability and reliability?

Any hub motor should go for at least 30,000 miles if you treat it well.

 

[AndyBike]

People add 400w with legs I read somewhere

I dont see them taking off with commuters though
(Pic of Flecc in his early riding days)