I have four of these derailleurs in this collection - and each displays slight differences from the others.

This is a pleasantly clean example with the following features:

• Derailleur brands: Regina, manufactured by Stratec or Simplex
• Themes: Ultra-lightweight - short cage models
• Country: Italy, manufactured in France
• Date of introduction: 1993?
• Date of this example: unknown
• Model no.: unknown
• Weight: 181g
• Maximum cog: 28 teeth?
• Total capacity: 28 teeth?
• Pulley centre to centre: 55 mm
• Index compatibility: 7-speed
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: largely plastic with a steel inner parallelogram plate