This ZZR is an inch-perfect copy of a Huret Svelto - with some characteristic Eastern European touches - nuts that are slightly too large, a mixture of chromed and zinc-plated finishes and a slight, but distinct, heart-warmingly agricultural feel.

I believe that this example is an earlier version with smoother stampings and steel pulley wheels with ball bearing races.

• Derailleur brands: ZZR
• Country: Poland
• Date of introduction: 1972?
• Date of this example: unknown
• Model no.: unknown
• Weight: 256g including hanger plate, but excluding drop out bolt
• Maximum cog: 28 teeth?
• Total capacity: 28 teeth?
• Pulley centre to centre: 45mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: top normal
• B pivot: unsprung
• P pivot: sprung
• Materials: steel