This mysterious derailleur has a bit of everything, a touch of Dimosil about its adjustment screws with huge, slotted heads, a touch of Shimano Skylark about its main parallelogram, a touch of the SunTour Honor's 'quick cage' around its tension pulley and a touch of 'aero' styling around its guide pulley. Very eclectic.

Civilian government was restored in Brazil in 1985, and between then and 1990 the country kind-of, gradually reopened trade links with the rest of the world, making it less neccessary to manufacture everything in Brazil. I am guessing that this derailleur was produced sometime late in the period when Brazil was forced to be self sufficient - perhaps in or around 1988.

• Derailleur brands: Jevel
• Country: Brazil
• Date of introduction: 1988?
• Date of this example: unknown
• Model no.: unknown
• Weight: 224g
• Maximum cog: 28 teeth?
• Total capacity: 28 teeth?
• Pulley centre to centre: 55mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: low normal
• B pivot: unsprung
• P pivot: sprung
• Materials: steel