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Wiring loom set for conversion (incl. light switch) -BGM PRO, Vespa AC conversion to electronic ignition- Vespa Smallframe V50, 50N, PV125, ET3, Vespa Largeframe Sprint, Rally, TS, GT, GTR, GL, Super, GS160, SS180, VNA, VNB, VBA, VBB

€46.90 *

incl. VAT plus shipping costs

In stock: can be delivered or picked up in the store
EAN: 4250366676524
Wiring looms
cable colors tail light: black, grey, yellow
number of cables for tail light: 3
cable colors brake light switch: grey, red/white
number of cables for brake light switch: 2
cable colors junction box (engine): black, blue
number of cables for junction box (engine): 2
cable colors horn: red, white
number of cables for horn: 2
cable colors headlight: black, brown, purple, yellow
number of cables for headlight: 4
cable colors light switch: brown, purple, yellow
number of cables for light switch: 3
cable colors rectifier: 2x black, blue, red
number of cables for rectifier: 4
cable colors speedo: blue
number of cables for speedo: 1
cable colors indicator relay: orange
number of cables for indicator relay: 1
cable colors CDI/high tension coil: green
number of cables CDI/high tension coil: 1
cable colors indicator switch: orange
number of cables for indicator switch: 1
P For this item you get fidelity point/s
Conversion wiring harness for conversion to: PX alternator or PX engine in Rally, Sprint,...Continue reading


Conversion wiring harness for conversion to:
  • PX alternator or PX engine in Rally, Sprint, VBB, Super, VNA, VNB, etc.
  • PK alternator or PK engine in V50, Primavera, ET3, V90 etc.
  • The conversion to a more modern alternator/ignition type is a proven means to be more durable and safer on the road. The contact-free CDI ignitions are almost indestructible and reliable, and the light output with a modern, regulator-supported, on-board electrical system is many times higher, since not only is the voltage increased from 6Volt to 12Volt, but the ignition base plate can also produce more power in general.

    Therefore it is necessary to adjust the wiring harness, because in modern electrics the alternators have all light coils connected in series for maximum power output and only one live cable is left as output for the on-board voltage. This is then led to the voltage regulator, which limits the on-board voltage to constant 12-13Volt. This effectively prevents the dreaded domino effect of the old electrical system, where all bulbs burn out one after the other after a defect of one. Only after the regulator is the current then conducted to the individual consumers. By this technology also a very high performance alternator can be used like e.g. our BGM ignition base plate, which already guarantees a high light yield and ignition performance at low speeds.

    To use such an alternator in the old chassis one needs therefore a suitable wiring harness. Our retrofit wiring harness is exactly the right thing and can be used very universally. It is based on an electrical system reduced to the most necessary, which lights the horn/ratchet, headlights/dipped headlights and the rear/brake lights. Optionally, the installation of a flasher relay is possible, the wiring harness is already prepared for this.
    In connection with our BGM 12Volt voltage regulator, this results in a very modern on-board electrical system which, in addition to a brilliant and powerful light output, also has gimmicks such as a DC output for the charging function of a mobile phone or e.g. a navigation device.

    By using our conversion wiring harness, no battery is needed anymore. A possibly existing 6V ratchet can still be used, it can cope with the occasional 12V without problems. Further technical information is stored in our wiring diagram.

  • reliable electronic ignition - never again adjust contacts
  • very high light output with 12V on-board voltage
  • optional direct current for the charging function of a mobile phone, navigation device

  • Please note: With very old vehicles space problems may occur due to the larger cable cross-sections of the conversion wiring harness used. This especially in the area of the tube duct for the rear light and in the steering head area. For safety reasons we do not want to use smaller cable cross sections.
  • Wiring diagram: See "Downloads"
  • Available as set with matching light switch for:

    • Vespa Smallframe V50 Special
    • Vespa Smallframe V50, 50N, PV125, ET3, Vespa Largeframe Sprint, Rally, TS, GT, GTR, GL, Super, GS160, SS180, VNA, VNB, VBA, VBB

    Note: A brake light switch type "normally open" is required.




    Fits the following vehicles


    14 Oct 2016

    bon mais je ne l'ai pas encore fini de le mont

    23 Mar 2016

    Absolut Top wie immer 👍

    6 Dec 2015

    bester kabelstrang für 12v

    5 Dec 2015

    Klasse Kabelbaumset mit Schalter. Tolle Vorbereitung bei den Kabellängen. Alle Steckerkontakte dabei. 1A Teil für jede Restauration!

    27 Nov 2015

    gutes Produkt für den Umbau meiner V50, Qualität stimmt

    11 Oct 2015

    Gute Qualität, kommt Aufgerollt und und nicht mit Gummiband umwickelt.
    Gleich passenender Lichtschalter dabei.

    25 Aug 2015

    bremslichtschalter schliesser nicht vergessen

    23 Aug 2015

    produit parfait pour la conversion 6volts /12volts

    28 Jul 2015

    Idiotensicher, so verstehe ich sogar Elektrik!

    23 Jul 2015

    Easy 'plug and play'

    9 May 2015

    Sehr gute Qualität der Kabel. Schalter ist Standardware. Beschreibung ebenfalls sehr gut.

    Die Kabel zum Schalter lassen sich aufgrund ihres Durchmessers nur schwer durch die vorgesehene Duchführung durch den Lenker bekommen.

    21 Apr 2015

    Super Preis

    19 Apr 2015


    10 Mar 2015

    Saubere Arbeit, passt und stimmt.

    10 Feb 2015

    Top Verarbeitung, einfache Montage.

    23 Dec 2014

    Top Ware

    15 Dec 2014

    Top Qualität

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