Vintage Browning Automatic Transmission System Crank Set Patent BEAST Suntour

  

Vintage Browning Automatic Transmission System Crank Set Patent BEAST Suntour. A Browning Automatic Transmission System Crank, also known as Suntour BEAST or Browning Electronic Automatic Shifting Transmission. Crank and articulating 1/4 Chainring set appear to function fine. Tapers and threads are good.

Anodizing on the arms shows some deterioration which is normal with these. Does not include the other pieces in the.

Suntour or Browning Automatic Transmission System. Other Browning bicycle drivetrain parts also listed.