Explanation of Shimano electronic system

father_jack
father_jack Posts: 3,509
edited August 2010 in Road buying advice
What is Shimanos new DI2 system? I guess maybe wireless RF shifters, with electronic motorised shifters with battery pack? Adds weight though? What are the benefits, apart from no cable from shifter to derailler
Say... That's a nice bike..
Trax T700 with Lew Racing Pro VT-1 ;-)

Comments

  • softlad
    softlad Posts: 3,513
    Father Jack wrote:
    What is Shimanos new DI2 system? I guess maybe wireless RF shifters, with electronic motorised shifters with battery pack? Adds weight though? What are the benefits, apart from no cable from shifter to derailler

    wireless..? no. Apart from that, you're about right....
  • ThanksBye
    ThanksBye Posts: 519
    Nope DI2 is still wired, its just computer controlled so shifts perfectly every time, and uses buttons rather thatn levers, and it only wieghs 50grams more than standard dura ace
    Cotic Soul
    Pearson Hanzo
    Airborne Zeppelin
  • Bobbinogs
    Bobbinogs Posts: 4,841
    http://en.wikipedia.org/wiki/Electronic ... ing_system
  • Mister W
    Mister W Posts: 791
    It does clever stuff like only shifting when the cogs are in the perfect position and trimming the mechs automatically. It also allows you to have more than one set of shift buttons so on a TT bike you could have buttons on the brake levers as well as on the aero bars.
  • father_jack
    father_jack Posts: 3,509
    Can't understand why wireless isn't a feature, surely would make sense no cables at all...very neat system.
    Say... That's a nice bike..
    Trax T700 with Lew Racing Pro VT-1 ;-)
  • rake
    rake Posts: 3,204
    interferance probably, battery life and size of transmitters in the mechs another. swith mode led lights would probably disable it.

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