you want a motor with a gearbox in it?

[Deleted member 4366]

What's more interesting to me is the 48v! If we got 48v instead of 36v on OEM bikes, life would be a lot better.

 

[Woosh]

CVT on a crank-drive bike is one of those ideas that sound very logical and practical, but when you try it in practice, it doesn't quite give you what you'd hoped for.

I have Nuvinci on one of my CD bikes for which I had high hopes, but now it's confined to the garage. For me, nothing beats a hub-motor with derailleur gears. I don't know why, but that combination just seems to hit the spot - simple, light, durable and reliable. I'm not a luddite. I like to try everything new, and I'll try one of those Continental systems as soon as I can. If it's better, I'll buy one.

I agree however, the NuVinci in the Conti motor is placed at the chainring, the torque on it should be less than half of that placed on a gearbox at rear wheel. I would have thought a modified Nuvinci could have replaced the internal belt drive reduction gearbox and saved a bit of weight.

 

[Woosh]

What's more interesting to me is the 48v! If we got 48v instead of 36v on OEM bikes, life would be a lot better.

we were talking about the legality of 48V in the context of EN15194.
Conti does not have any problem with 48V. May be we should all ride 48V bikes!

 

[flecc]

they claim their software is 99.97% accurate, so I should sleep easy.

That's good, just like their financial forecasts.
.

 

[anotherkiwi]

we were talking about the legality of 48V in the context of EN15194.
Conti does not have any problem with 48V. May be we should all ride 48V bikes!

It really is night and day with the GSM! It even makes less noise at 48v for Pete's sake!

 

[anotherkiwi]

It is a shame this one didn't go beyond prototype: https://www.electricbike.com/pinion/

 

[greyfox69]

I tried one , or one very similar, at the bike show last Autumn, the 36volt version i think, I thought it rode very well i will definitely be interested in one, when they have ironed out all the little niggles.

 

[Gubbins]

I would have thought that CVT is particularly good for mid drive motors, you can maintain motor output during ratio shifts. A Rohlhoff would necessitate easing off on power before and during gear shifts.

According to some e-14 info I read it sends a signal to the bosch motor to momentarily cut power for the shifts. Also like the way it auto shifts to a low gear when stopped, but therre must be some reason why I can only find one e-bike with it fitted..

 

[Woosh]

, but therre must be some reason why I can only find one e-bike with it fitted..

may be because Rohlhoff charge more for their E-14 alone than the mechanical bike costs?

 

[soundwave]

https://www.ebike-manufaktur.com/de/e-bikes.php

http://www.cycle-union.de/de/

 

[Crockers]

This is the one with the gears in the motor

https://www.ebike-manufaktur.com/de/katalog/e-bikes/8cht-gates-nuvinci-ecvp-380-disc-continental-600wh

 

[anotherkiwi]

If you can call ball bearings rolling around and eating up over 15% of the power produced by the motor "gears"...

 

[oyster]

This is the one with the gears in the motor

https://www.ebike-manufaktur.com/de/katalog/e-bikes/8cht-gates-nuvinci-ecvp-380-disc-continental-600wh

Expensive, yes, but not nearly as much as I had expected. € 4,499.90

(Just far more than I can afford!)

 

[Gubbins]

Expensive, yes, but not nearly as much as I had expected. € 4,499.90

(Just far more than I can afford!)

I think/hope I am a few years away from a step through, but if I was then I rather like this!

 

[Crockers]

I think/hope I am a few years away from a step through, but if I was then I rather like this!

It can be had with a diamond frame too. Dont think there's a uk distributor though

 

[anotherkiwi]

I can understand wanting a motor/gearbox combo with a full suspension bike - keep the rear wheel as light as possible and center mass. But in a city bike? Really? Another "problem" that didn't need solving or more profit for large companies that don't make enough already...

 

[SexyHyde]

**NECRO POST**

Just a heads up that Conti have shut down their whole ebike business, so it looks like mid drive + gearbox still isn't coming any time soon.

Is anyone else making any progress with mid drive + gearbox development?

 

[flecc]

Original link no longer works.

Here's a new link
.

 

[soundwave]

Death of the derailleur? Shimano has patented a bicycle gearbox and we are extremely excited about it | Exclusive

Why this patent could signal an enormous change to bicycle design

www.bikeradar.com

 

[SexyHyde]

Death of the derailleur? Shimano has patented a bicycle gearbox and we are extremely excited about it | Exclusive

Why this patent could signal an enormous change to bicycle design

www.bikeradar.com

That's just a gearbox (derailleur replacement) anyone building a gearbox and mid drive motor in one?