The Shimano Lark is a Skylark with the cable clamp bolt mounted on a sprung ‘cable saver’ arm. I have always liked this feature as it gives a pleasant supple feel to the gear change.

I think this example is the first version with the aluminium(?) nameplate and screw pulley cage stop.


  1. Brand: Shimano

  2. My category: Shimano - from Skylark to world domination

  3. Country: Japan

  4. Date of introduction: 1967?

  5. Date of this example: 1967? (date code is 4M, ‘333’ marking on pulleys)

  6. Model no: unknown

  7. Weight: 357g including hanger plate

  8. Maximum cog: 28 teeth

  9. Total capacity: 28 teeth

  10. Pulley centre to centre: 54mm

  11. Index compatibility: friction

  12. Chain width: 3/32”

  13. Logic: top normal

  14. Pivots: two sprung pivots

  15. Material: steel


Shimano Lark black (1st style)