Shimano Ultegra Di2 ST-6770 Dual Control Levers Compatibility and Specifications

Shimano Di2 ST-6770 Ultegra Electric Dual Control Levers 2012 model series.

By eliminating all of the mechanical shifter parts, the new Dual Control lever weight is reduced by over 100g 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
Steel fixing band and bolt
Aluminium brake lever blade
Flight deck compatible
Adjustable reach
Optional satellite switch
Clamp 23.8-24.2mm bar diameter
Published weight 350 grams (pair)
10 speed compatible
Double Compatible

Japan Retail release Autumn 2011

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.