Shimano Lark SS (D210)

Shimano Lark SS derailleur (D210) main image

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 fourth version of the Shimano Lark in its SS guise. For this fourth generation Shimano redesigned the pulley cage plates and stop, and reduced the depth of the parallelogram plates.

The SS version has the classic embossed outer parallelogram plate with that zany 1970’s typeface. This example has particularly unusual and alluring chromed caps over its main pivots - nice.

  • Derailleur brands: Shimano
  • Categories: Shimano - from Skylark to world domination
  • Country: Japan
  • Date of introduction: 1971
  • Date of this example: unknown (no date code but has ‘3.3.3.’ marking on pulleys)
  • Model no.: D210 or 52204001
  • Weight: 323g 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
Shimano Lark SS derailleur (D210) additional image 01

Browse associated documents.

Shimano exploded views - Lark

Shimano exploded views - Lark

  • Publisher: Shimano
  • Date:
  • Derailleur brands: Shimano
  • Derailleurs: too many to list here
Shimano Bicycle Parts Catalog - 1973 page 102 thumbnail

Shimano Bicycle Parts - 1978 scan 18 of 27

Shimano Bicycle Parts - 1978 scan 18 of 27

Shimano Bicycle Parts - 1978 scan 18 thumbnail