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This is a rather pleasant example of an early Simplex Vallée. Its features are:

• The outer parallelogram plate is silver with a rather stylish cursive logo complete with the acute accent on the 'e'.
• The knuckles are painted mid-grey - with normal paint.
• The cable route goes around a plastic covered pin. There is no switchable cable route, as in later versions.
• The pulley cage plates are finished in satin chrome.
• The pulley wheel bolts have Torx heads
• The cable clamp uses an hex bolt.
• The cable adjuster is silver.

This derailleur is notably similar to the Stratec RX700.

hex cable clamp grey styling cursive logo Ofmega 1988

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• Derailleur brands: Simplex
• Categories: Simplex - the bitter end
• Country: France
• Date of introduction: 1988?
• Date of this example: unknown
• Model no.: 10111?
• Weight: 272g
• Maximum cog: 28 teeth (Simplex)
• Total capacity: 28 teeth (Simplex)
• Pulley centre to centre: 46mm
• Index compatibility: 5 & 6 speed
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: fully aluminium parallelogram and steel pulley cage plates