DISRAELI GEARS

Shimano Nexave Di2 (C810)

Shimano Nexave Di2 derailleur (C810) main image

It’s heavy, it’s ugly and it’s targeted at that elusive creature - the general leisure cyclist - so it must be ‘the future’.

The Shimano Nexave Di2 (C810) follows in the hallowed footsteps of the Shimano Positron, combining the very latest in derailleur thinking with the lowly steel (and plastic) technology of the Shimano Tourney. Just as the embarrassingly unsuccessful Shimano Positron system prefigured the industry-changing Shimano Dura-Ace (7400), so the Nexave Di2 is the embarrassing mad uncle of Dura-Ace Di2. There was never a genius without a tincture of madness.

The Nexave Di2 (C810) has some interesting features, the adjustment screws are in the front knuckle - like 1960s SunTour, there is a strange sliding ‘reach’ adjustment on the front knuckle, the rear knuckle is held together with ‘Tri-Wing’ headed screws (like Phillips but with only three grooves) - which I have only ever seen previously on Nintendo products and finally it comes with its own numerical code which you have to enter into the controller before it will operate - cooooool!

But does it work? My only experience of Nexave Di2 has been of demonstration models at trade shows - and they seemed to work exactly as well as ‘normal’, cheaper, lighter, simpler Shimano derailleurs.

A ‘solution looking for a problem’ or a harbinger of an electronic future? The jury is still out.


  • Derailleur brands: Shimano
  • Categories: Shimano - weirdness
  • Themes: Professor Piehead’s weird technology selection
  • Country: Japan
  • Date of introduction: 2004
  • Date of this example: unknown (there is no two letter date code)
  • Model no.: C810
  • Weight: 408g
  • Maximum cog: 33 teeth (Source: Shimano)
  • Total capacity: 44 teeth (Source: Shimano)
  • Pulley centre to centre: 86.5mm
  • Index compatibility: 8 speed
  • Chain width: 3/32”
  • Logic: top normal
  • B pivot: two sprung pivots
  • Materials: an eclectic mix of aluminium rear knuckle and outer pulley cage plate, steel inner parallelogram plate and inner pulley cage plate and plastic front knuckle and outer parallelogram plate.
Shimano Nexave Di2 derailleur (C810) additional image 01

Browse associated documents.



Shimano Technical Information - 2008

Shimano Technical Information - 2008

  • Publisher: Shimano
  • Date: 1998 to 2007 (these are model years 1998 to 2008)
  • Derailleur brands: Shimano
  • Derailleurs: too numerous to mention - see individual pages
Shimano Technical Information - 2008 image 1 thumbnail


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