Di2 Battery - BT-DN110-A7 Di2 Battery - BT-DN300 Built-In DI2 Battery - BT-DN300 Built-In DI2 Battery Options:BT-DN300 Built-In DI2 Battery - For Dura-Ace 9250 and Ultegra R8150 Systems, Compatible with SD300 Wires and the Equalizer™ gel padding

and the Equalizer™ gel padding delivers targeted support and protection where you need it most

Built from the inside out

and strength

without sacrificing anything to comfort

Soft and absorbent Microwipe™ thumb brushes away sweat with ease

Di2 Battery - BT-DN110-A7 Di2 Battery - BT-DN300 Built-In DI2 Battery - BT-DN300 Built-In DI2 Battery Options:BT-DN300 Built-In DI2 Battery - For Dura-Ace 9250 and Ultegra R8150 Systems, Compatible with SD300 Wires and the Equalizer™ gel paddingShimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com