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  1. NEW SHIMANO DI2 BATTERY OFFERS SYNCHRONIZED SHIFTING POTENTIAL FOR ULTEGRA 6870 AND DURA ACE 9070 RIDERS With the launch of Dura-Ace R9150 came new firmware offering road riders Synchronized Shifting options between front and rear derailleurs. Now this technology has been made available to Ultegra 6800 and Dura-Ace 9070 riders who have the latest Di2 battery. The new battery (BT-DN110) contains a memory chip that can handle the processing power required to deal with the multiple shift patterns and customizations that Synchronized Shifting brings, offering you the choice to suit your gear positioning to your personal riding style. How to access the new features: First ensure you have the new BT-DN110 battery, which is the only battery that allows you to take advantage of automated front shifts (ie full Synchronized Shift mode), or automated rear ‘correction shifts’ (ie semi-Synchronized Shift mode). Next, if you are a current Di2 user with compatible front (FD-6870/FD-9070/FD-9150) or rear derailleurs (RD-6870/RD- 9070/RD-9150) you can download the latest E-TUBE firmware either by a cable connection to a PC, or via Bluetooth from your tablet or smart phone to your components. Changing modes: If you have both the firmware and the new battery it is easy to tell which shifting mode you are in with a new sequencing of lights on your external SM-EW90A/B (pictured) or internal EW-RS910 junction box. A double click of the external button allows you to toggle between modes. • Solid red+green lights indicate Manual Shift mode • 2 blinks indicates Full Synchronized Shift mode • 3 blinks indicates Semi-Synchronized Shift mode Each mode is customisable in E-TUBE, meaning you can choose different combinations and customized shift patterns if you wish (for example, two semi-Synchronized Shift modes offering different ‘correction’ shifts, or two full Synchronized Shift modes that assign a front derailleur command on differing sprockets). For more information: A helpful video explains the benefits of E-TUBE and the potential shift mapping options here: http://e-tubeproject.shimano.com/about/semisyncroshift.html What is Synchronized Shifting? A function that allows riders to concentrate on only up or down shifting the rear derailleur while the Di2 system automatically picks the right gear combination from both the front and the rear derailleur. Even in Synchronized Shift mode riders still have full control over the front derailleur. Synchronized Shifting is designed to complement rather than replace manual shifting, and is especially useful when you are using auxiliary sprint, climbing or TT shifters, or, for Dura-Ace, the shifters on the top of the hoods. With one press of the rear shifting lever, the function can achieve the optimal front/rear gear for your personal riding style. The E-TUBE PROJECT app or website can be used to pre-set exactly when changes take place. What is Semi-Synchronized Shifting? Rather than automatically shifting the front derailleur, semi-Synchronized Shifting mode automatically shifts the rear derailleur when the front derailleur is shifted. This allows riders to obtain optimal gear transitions for smoother riding. Again, the E-TUBE PROJECT app or website can be used to determine exactly when this change takes place. What is manual mode? Manual mode is the system all Dura-Ace Di2 and Ultegra Di2 riders had access to until this point. Manual mode provides an automatic trim adjustment on the front derailleur but there is no corresponding gear shift of the front derailleur based on the shift action of the rear derailleur, or vice versa.