Shimano ST-7970 Dura-Ace Di2 Dual Control Levers Compatibility and Specifications

Shimano ST-7970 Dura-Ace

By using unidirectional carbon fiber brake lever blades and eliminating all of the mechanical shifter parts, the new Dual Control lever weight is reduced by over 155g over the mechanical version. The ergonomics are slimmed down and further refined for a comfortable grip.

The wiring harness for the shifters is designed to accept the all new FlightDeck computer (SC-7900) featuring heart rate, altitude, grade, cadence, estimated caloric consumption, gear position, and battery life all directly downloadable data via a wireless connection.

Di2 - Digital Integrated Intelligence - shifting
Titanium fixing band and bolt
Carbon fiber brake lever blade
Flight deck compatible
Adjustable reach
Optional satellite switch
Clamp 23.8-24.2mm bar diameter
Published weight 255 grams (pair)
10 speed compatible
Double Compatible

Japan Retail price 65.318 yen (see cross rate here)

Compatible ONLY with Shimano following parts: RD-7970, RD-6770, FD-7970, FD-6770 derailleurs.

Compatible with all 10 speed Shimano crankset.

Compatible with Shimano Brake Calipers: BR-7900, BR-7800, BR-6700, BR-6600-S/-G, BR-5700, BR-5600-S/-L,

Require to be used with Shimano; SM-BTR1, EW-7970, Double setting wires SM-EW79F-E (with SC-7900) or SM-EW79A-E, SW-7970, SW-7972.