With the closing of the 1970s the venerable Lark design took a small, but significant steps forward. The cable clamp was mounted on the outer parallelogram plate - changing the geometry of the gear, as previously the cable clamp was attached to the front knuckle. The spring-loaded cable saver was also moved from the cable clamp bolt and built into the outer cable stop. All this clearly deserved a change of name - to Lark II.

This example has a Japanese-style backwards hanger plate.

• Derailleur brands: Shimano
• Categories: Shimano - from Skylark to world domination
• Country: Japan
• Date of introduction: 1977?
• Date of this example: 1982 (two letter date code is GH, stamped onto inner parallelogram plate)
• Model no.: LK10
• Weight: 299g including hanger plate
• Maximum cog: 28 teeth
• Total capacity: 28 teeth
• Pulley centre to centre: 54mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: top normal
• B pivot: sprung
• P pivot: sprung
• Materials: steel