King Fire designs and manufactures open primary drives for Harley Davidson Sportster Softail and Touring models produced from 1988 to the present day. All the primary drives manufactured are unique products, the result of the perfect mix of passion, craftsmanship, the latest generation of CAD/CAM technology and high quality materials. King Fire offers the option of 2", 3" and 3.5" belts for all its models and primary drive solutions. Furthermore, all the primary drives have single-piece flange plates (single-piece: greater overall mechanical stiffness and reduced vibrations) made from Ergal 7075 aluminium, drive shaft spline, clutch bell gear and bush bearing made from CASE HARDENED STEEL. All the products can be personalised as regards the colour, which can be:

  • Natural - Natural aluminium
  • High temperature opaque black
  • Black gloss powder
  • Chrome
  • Anodised
  • Nickel-plated
  • Antiqued bronze
  • Brushed copper
  • Any Pantone colour in 250° powder coating
Furthermore, it is possible to carry out laser engraving on all the components of the primary drive kit according to a customer design. For the drive belt, it is also possible to create personalised screen prints.

trasmissione primaria nera

trasmissioni primarie aharley davidson

In addition to designing and manufacturing primary drives, King Fire also creates personalised original exhausts for all models of motorbike.

elaborazione scarichi harley

elaborazione scarichi originali