New Dura-Ace 9070 Di2 is Shimano’s lightest and most advanced electronic shifting system that maintains the competition-proven precision and efficiency of the Di2 platform. The Dura-Ace 9070 Di2 system is more compact, lighter weight, more ergonomic and offers new plug-and-play benefits and enhanced function from new generation Di2 E-tube electronics. The new Flight Deck integrated cycle computer offers touch screen control and wireless data from ANT+ systems. When used with the new SM-BTR2 internal seat post battery, Dura-Ace 9070 Di2 can achieve a lighter weight than a Dura-Ace 9000 mechanical group.
- Electronic Rider Tuned gearing â€“ the new Dura-Ace 9070 Di2 system expands Shimano’s Rider Tuned philosophy with electronic shifting supporting either 10 or 11-speed drivetrains. The system supports new Dura-Ace 9000 Rider Tuned gearing options in the 11-speed rear cassettes that offer up to 28T capacity.
- Improved lever ergonomics, function â€“ The new ST-9070 dual control lever has the same new compact shifter hood ergonomics and braking compatibility as ST-9000 and shifter ergonomics are improved due to new wider shifter buttons. The ST-9070 dual control lever will now feature a programmable multi-shift function when set up through the PC based E-Tube Project Software.
- Compact, lighter weight 9070 derailleurs â€“ The new FD-9070 front and RD-9070 rear derailleurs are both more compact, lighter weight and offer more clean cable routing options. Both new derailleurs are E-tube compatible.
Plug and play electronics and rider-specific options â€“ Dura-Ace 9070 Di2 will present the most Di2 connectivity options to date through new generation E-tube compatible electronics and wiring. Four shifter options will be available for 9070 Di2 including traditional drop handlebar ST-9070 dual control levers, TT handlebar SW-9071 shifters, the SW-R610 sprint shifter and the SW-R600 satellite shifter. New multi-port junction boxes, additional ports built into the ST-9070 levers and multiple wiring lengths enable easy plug and play installation. The new SM-BTR2 internal seat post battery enables an internal power source for cleaner wiring and aesthetics.
Greater ease of use and system flexibility â€“ The Dura-Ace 9070 Di2 system with new E-tube compatible electronics and wiring now enables a bike-mounted programmable shifting layout, function and system information through the new Flight Deck computer. The new E-tube Junction A enables more shifter connectivity ports including a charging/diagnostic port which is especially favourable for the new internal SM-BTR2 seat post battery. Internal and external junction boxes, battery and mounting accessories will continue to be available.
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