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BMW Airhead Boxer adjustable high output voltage regulator

BMW Airhead Boxer adjustable high output voltage regulator


BMW Airhead Boxer 14v adjustable electronic voltage regulator, featuring a period looking zinc plated metal case.

Designed to fit all BMW R2v Airhead Boxer models including:

  • BMW /5 Series (70-73)
  • BMW /6 Series (73-76)
  • BMW /7 Series (76-84)
  • BMW R45/65 (78-84)
  • BMW R80 G/S
  • BMW R80 ST
  • BMW Monolever (85-96)
  • BMW R80/R100 GS Paralaver
  • BMW R100 R & Mystic Paralever


High quality replacement, using modern materials and technology, offering the unique feature of being adjustable for the voltage output though a small dial on its underside.

Particularly suitable if using different types of batteries or wish to limit or increase the output over certain distance. Increase the output if riding around town or drawing more amperage than usual through lights, spot lights, GPS, USB plugs, rider's equipment etc. or lower output for longer rides requiring less amperage thus reducing the load and protecting the charge system and battery.

Adjustable range 13.5v - 14.6v

Straight swap

NOT RECOMMENDED FOR LITHIUM BATTERIES - These batteries require a very steady and narrow range of voltage charging, typically between 13.9 to 14.1v and can be easily damaged by voltage spikes. We recommend that you use a specific Lithium battery regulator using the latest Mosfet techonology.

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