Custom Parts for your Motorcycle
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1978 Yamaha SR 500

completed bikes


  • Frame de tabbed and hooped
  • Battery relocated
  • GSXR front end
  • Adapted brembo brakes front and rear
  • Brembo front rotor
  • 18" RD400 wheels
  • Custom made sprocket carrier
  • GSXR rearsets
  • Cal Fab aluminum swing arm
  • Custom made rear brake stay
  • Bobbed Honda front fender with handmade fork brace
  • Gauge bucket molded into headlight bucket with re orientated Lossa brand tach face
  • Tommaselli headlight ears
  • Binelli gas tank with custom Lossa gas cap
  • Handmade steel tail section with frenched in Lossa tail light
  • Wired from scratch
  • Weisco Big bore kit
  • WebCo Cam
  • Heavy duty valve springs
  • Ported head
  • 36mm Mikuni carb
  • Custom intake manifold
  • K&N filter
  • Custom exhaust with Lossa cone muffler
  • Welded sprocket cover to stator cover to make one piece
  • All aluminum was polished first, then hand brushed and cleared over
  • Works shocks



Lossa Engineering's short film "Solus"  

Cafe Racer TV season 1

episode 5
episode 6
episode 7
2010 Long Beach IMS Ultimate Builder, 3rd place  

Boz Bros Test for Cafe Racer TV!

Eric Bostrom   Ben Bostrom

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