EVOLUTION OF PERFECTION A legend with new perfection. The ideal symbiosis of low weight, stiffness and performance for new standards in professional cycling. Shimano has combined all of its development know-how with the latest technologies to reach a new level of perfection.
New precision standards - Di2 The long-awaited DURA-ACE electronic group for road bikes with Di2 technology complements the new DURA-ACE 7900 mechanical group. The DURA-ACE 7970 electronic group is based on state-of-the-art technologies that provide the driver with a revolutionary driving experience. After five years of development by hundreds of engineers and extensive testing on the Pro Tour, the DURA-ACE with Di2 is now available - and causes a sensation in the bike world.
Efficient design for lighter weight and a clean look
Usual operation as with the mechanical Dura Ace
Operation by switch
Ergonomically shaped handle
Brake lever made of carbon with reach adjustment
Weight: 255 g
Dual Control brake lever 10x2
Inner cables for brake 800x1000 mm
Outer shells BC-7900 1800x2000mm in HI-Tech Gray
Note on compatibility
These Dura Ace 7970 first generation Di2 devices with four-core cables are not compatible with all subsequent Di2 groups with two-wire cables!
Currently we can offer the manufacturer info only in 汉语:
Über die Marke Shimano
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