This is a rather pleasant late version of a late Simplex Vallée. Its features are:

• The outer parallelogram plate is black with capitalised logos in white.
• The knuckles are coated in an interesting bronze plastic substance - possibly Teflon, but possibly not.
• The cable route can be switched between 'standard spaced 5 & 6 speed sprockets' to 'compact spaced 6 & 7 speed sprockets' by rotating a small back plastic component.
• The pulley cage plates are black.
• The pulley wheel bolts have Allen heads
• The cable clamp uses an Allen bolt.

This derailleur is notably similar to the Stratec RX700.

• Derailleur brands: Stratec
• Country: France
• Date of introduction: 1993?
• Date of this example: unknown
• Model no.: TS700
• Weight: 319g
• Maximum cog: 34 teeth (Simplex Forêt)
• Total capacity: 40 teeth (Simplex Forêt)
• Pulley centre to centre: 87mm
• Index compatibility: 5 to 7 speed (Simplex Forêt)
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: fully aluminium parallelogram and steel pulley cage plates

Ref. 1691