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NUNSPEET, the Netherlands - The recently introduced electronic road racing groupset Dura-Ace has got an important addition. The Di2 technology is also available with electronic shifters especially for time trial and triathlon usage.

These products eliminate the need to change hand position for shifting. The rider can change gears at the base-bar as well as at the bar extensions from now on. The direct result is saving time and a better concentration on the ride.

ST-7971 is the model number of the Dual Control Levers for time trial and triathlon. They feature a carbon lever blade that reduces the weight to 127 grams per pair. They are compatible with the new Flightdeck cycling computer with integrated buttons in the hoods. 

SW-7971 is the model number of the electronic satellite switch that can be integrated easily into time trial bar extensions. The shift wires are guided through the bars for optimal aerodynamics. Weight is 103 grams per pair.

These shifters are compatible with the new DURA-ACE Di2 derailleurs FD-7970 (front derailleur) and RD-7970 (rear derailleur). They will be available in the market around three months after the availability of the regular 7970 series.