Forum bmwbike.com

Salut, J'ai une R50 de 1955 équipée en 6 V, est-ce possible de l'équiper en 12 V ?
Si oui, où est-ce que je dois m'adresser (en France ou pays voisin). Merci d'avance.
I want to know if it's possible to change a dynamo 6V for a dynamo 12V. My bike is a R50 model 1955. Thanks for all.

Bench Mark Works in the US sells a 12V conversion that is well made and very easy to install, but rather expensive at $600 USD.
http://members.aol.com./antiquebmw2/conversion.html

MB-Z in Berlin sells a 12V conversion with electronic ignition for $300 USD. Several people have installed it, and they report that the instructions are difficult but it works very well:
http://www.dynamo.mz-b.de/bmw/bmwmain.htm

In addition to the cost of the conversion kits, you must also buy new 12V battery and bulbs.