NAHBS 2010: Dura-Ace Di2 takes hold Handmade crowd see potential of Shimano's electronic drivetrain Share on Facebook Share on Twitter Share on Pinterest Share on Whatsapp Share on Reddit Email to a friend By James Huang Published: March 1, 2010 at 10:30 am Dave Wages built this Ellis bicycle with a mix of Dedacciai steel tubing James Huang/BikeRadar The Di2 wire enters the frame just aft of the head tube at this neat brazed-on port James Huang/BikeRadar The battery is mounted beneath the chainstay using dedicated braze-ons James Huang/BikeRadar A small loop added on the dropout helps guide the Di2 wire James Huang/BikeRadar The rear brake cable is routed internally, too James Huang/BikeRadar