bimoz from Switzerland

[LockH]

http://www.bimoz.ch/en/

(... 250 watt, proprietary, high efficiency, permanent magnet motor..."

"Small" battery:
Weight: 0.60 kg / capacity: 80 Watt hour / voltage: 14v / range: 40 – 60 km* / duration: 1.5 h at 50% performance
"Large" battery:
Weight: 1.20 kg capacity: 220 Watt hour / voltage: 14v / range: 130 – 150 km* / duration: 3 h at 50% performance

Coming soon...
The bimoz is offered as "Early-Bird" for less than 1000 Euros/USD on Indiegogo starting on 16th March, 2016.
Further informations coming soon...

[youtube]oLrKZ3tSYcw[/youtube]

 

[Miles]

Not sure what happened with his "patent" http://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=4&ND=3&adjacent=true&locale=en_EP&FT=D&date=20140307&CC=IT&NR=GE20120089A1&KC=A1

 

[LockH]

And Bimoz gets a mention on Petes Electric Bike Report:
http://electricbikereport.com/bimoz-e-bike-mid-drive-kit-video/

Quote Pete:

It will be interesting to see how bimoz overcomes the inherent technical conundrum of mounting a gearless motor in the crank area; a comfortable pedalling cadence for most riders is around 60-100rpm whilst motors like to spin at a far higher rpm to work efficiently.

 

[davidahn]

Does anyone else have any thoughts on this? I was considering a Bafang 750W or 1000W kit but it all adds up to a lot of weight and money. The Bimoz sounds simple, lightweight, and more economical.

Thanks in advance.

 

[Miles]

Does anyone else have any thoughts on this?

It won't be very powerful. 200 Watts or less, probably. Should be good as lightweight assistance though.

 

[LockH]

Per Pete, 250 watt. (No idea if this means continuously or whether it could peak briefly at much higher powers.)

 

[jateureka]

This Bimoz mid drive kit has some nice features.
https://www.indiegogo.com/projects/bimoz-the-world-s-smartest-e-bike-drive#/

 

[LI-ghtcycle]

Ok, so when can I buy one!!

That is with out a doubt, the best use of a DD motor I have seen!

250W doesn't sound like much, but when it's as a mid drive, think of it more like a 500W hub motor in the rear wheel, in that it will have so much more torque going through the gears, take less power to do more!

Sure, I would want one that is maybe 250w continuous, and 500w peak, but if you just want a lightweight simple system that will give you a boost? Or give you extra resistance as a trainer!

Brilliant! 8)

 

[LI-ghtcycle]

Ok, I looked a little deeper on their site, $999 gets you the larger capacity battery, but it appears that there are no options for greater than 250w power, hopefully that means continuous with a much higher peak

This thing is LIGHT!!

The entire system including battery is just under 4 lbs!!!!

That alone makes this a must have for me, it will be perfect to put on my 700c hybrid for short trips with my dad!

I really do hope can offer other options such as a throttle or at least adjustment for the torque sensing ped-elect, since not all of us have full use of our legs, and this could be a barrier for those who have a bad knee or arthritis and cannot put as much pressure on the pedals to activate some ped-elect systems.

 

[liveforphysics]

That is with out a doubt, the best use of a DD motor I have seen!

250W doesn't sound like much, but when it's as a mid drive, think of it more like a 500W hub motor in the rear wheel, in that it will have so much more torque going through the gears, take less power to do more!

In all the configurations shown in the videos, it's going through the gears the wrong way to be increasing torque at the drive wheel, but rather having the gearing be a meaningful penalty to the native torque of the motor.

Not saying it's a bad idea, neat to have the bottom bracket mass also be used as the motor bearing.

 

[LI-ghtcycle]

That is with out a doubt, the best use of a DD motor I have seen!

250W doesn't sound like much, but when it's as a mid drive, think of it more like a 500W hub motor in the rear wheel, in that it will have so much more torque going through the gears, take less power to do more!

In all the configurations shown in the videos, it's going through the gears the wrong way to be increasing torque at the drive wheel, but rather having the gearing be a meaningful penalty to the native torque of the motor.

Not saying it's a bad idea, neat to have the bottom bracket mass also be used as the motor bearing.

Hmm, do you mean there is a much more efficient way that the motor could transfer the power to the axle? (crank spindle)

I am not exactly sure how it is attached, but correct me if I am wrong, it appears to be running like an outrunner, however instead of a stationary axle, the axle moves much like some people have converted a geared hub motor to do? (I forget the term used)

And If that is true, this is less efficient than the reverse such as how our DD hub motors work?

Sorry if I am just missing something already explained, as I am unfamiliar with the terminology.

 

[bjorsa]

Any news on the Bimoz lately? Are they produced yet?

 

[karlla]

Any news on the Bimoz lately? Are they produced yet?

Shipping is not started yet. I heard that they are doing some optimization of torque sensor and software-like works.

 

[mechaniker]

range of 150km with a 200watt battery let´s say I have a little doubt in this

 

[ThierryGTLTS]

Hope for them it'll work soon!

But I'm not very confident, because on the photos, the motors are not wound!

They intend to use alu instead of copper to save weight, but alu wire is difficult to solder and to wind.

Have a Nice Day.

Thierry Legros