DISRAELI GEARS

SunRun HG-04

SunRun HG-04 derailleur main image

Another slightly cheap and slightly nasty copy of a Shimano Tourney TY15 from the up-and-coming Chinese city of Ningbo. A modern touch is the helical tension spring in the parallelogram.


  • Derailleur brands: SunRun
  • Country: China
  • Date of introduction: 2006?
  • Date of this example: 2006?
  • Model no.: HG-04
  • Weight: 266g
  • Maximum cog: 32 teeth?
  • Total capacity: 35 teeth
  • Pulley centre to centre: 75mm
  • Index compatibility: 6 speed?
  • Chain width: 3/32”
  • Logic: top normal
  • B pivot: two sprung pivots
  • Materials: steel
SunRun HG-04 derailleur additional image 01
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