DISRAELI GEARS

Shimano Dura-Ace (7970-A SS)

Shimano Dura-Ace (7970-A) main image


  • Derailleur brands: Shimano
  • Categories: Shimano - the Dura-Ace story
  • Themes: Electric Avenue
  • Country: Japan
  • Date of introduction: 2016?
  • Date of this example: 2016 (two letter date code OB)
  • Model no.: 7970-A SS
  • Weight: 216g
  • Maximum cog: 28 teeth
  • Total capacity: 33 teeth
  • Pulley centre to centre: 56mm
  • Index compatibility: 10 speed
  • Chain width: 3/32”
  • Logic: top normal
  • B pivot: sprung
  • P pivot: sprung
  • Materials: carbon p-knuckle and pulley cage plates, aluminium b-knuckle and parallelogram plates
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