Shimano Di2 SM-EW79AI Aerobar Harness

  • $220.94
  • $141.95
Out of stock



Electronic cable and fittings for TT spec ST-7971 and SW-7971 shifters and switches to junction box
FlightDeck compatible
Reliable/secure water resistant connectors

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Dura-Ace 7970 is a Di2 series from Shimano. Di2 stands for ‘Digital Integrated Intelligence’.



This innovative technology is still based on Shimano's Index System (SIS) which has proved its superiority in gear changing performance over the years compared to non-SIS systems. The difference is that the shifting is provided by electronics rather than mechanics.


Shimano's SM-EW79AI allows TT and Triathlon handlebars to be used with the 7970 system.

More Information
Brand Shimano
Model Line Dura-Ace/Ultegra
Manufacturer Part Number SM-EW79AI2
UPC 689228443451
Color Black
Product Condition New in Box
Warranty Duration 3 Years