In all of Shimano's history, the Falcon may rank as its weirdest derailleur. It's a 2-speed contraption, with no lever or cable, that is operated by pedalling backwards. It was supplied as a kit with a 14-19T 2-speed freewheel.

I have never dared to install this example on a bike, but the one person who I have met who has used a Shimano Falcon seemed impressed with the way it changed.

The late 1960s and early 1970s were an inventive time at Shimano. They not only produced this Falcon derailleur, they also offered an automatic 2-speed hub gear and the incomprehensible 'Automatic 5' derailleur system. As an aside, it is often forgotten that, at the time, their range also included both cable-operated and hydraulic disc brakes.

• Derailleur brands: Shimano
• Categories: Shimano - weirdness
• Country: Japan
• Date of introduction: 1969
• Date of this example: unknown
• Model no.: AD2
• Weight: 443g including built in hanger plate
• Maximum cog: 19 teeth (it was supplied with a 14-19T 2-speed freewheel)
• Total capacity: 5 teeth
• Pulley centre to centre: none
• Index compatibility: 2-speed
• Chain width: 1/8"
• Logic: none
• B pivot: sprung
• P pivot: none
• Materials: steel

Ref. 1293