Recently we have announced the electronic road racing components DURA-ACE with Di2
technology. Now an important addition: 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 triahlon. They feature a
carbon lever blade that reduces the weight to 127 grams per pair. 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.