Pani,
I would like to know exact the same thing. In my investigations so far, I have found the following options:
Teres- various models, belt, or rim-drive
Galibier-
Red Point-
Battery PS option for stock Verdier motor by Graham Tricker
TW motor and speed controller.
Also various threads (linen, silk, floss, etc.) options for the stock Verdier motor
All of these options are fairly expensive- appr. $1000- 2500, maybe even more (with the exception of Tricker's battery option, which I don't know how much $$$)
I'm not sure about a degree of improvement, those upgrades will afford over the stock motor.
I would like to know exact the same thing. In my investigations so far, I have found the following options:
Teres- various models, belt, or rim-drive
Galibier-
Red Point-
Battery PS option for stock Verdier motor by Graham Tricker
TW motor and speed controller.
Also various threads (linen, silk, floss, etc.) options for the stock Verdier motor
All of these options are fairly expensive- appr. $1000- 2500, maybe even more (with the exception of Tricker's battery option, which I don't know how much $$$)
I'm not sure about a degree of improvement, those upgrades will afford over the stock motor.