BT-DN300 Built-In DI2 Battery - For Dura-Ace 9250 and Ultegra R8150 Systems Wetsuit Care The Hyper Hammer 5

The Hyper Hammer 5

The first choice for pro athletes Delilah Cupp and Evalina Nilsson

thanks to the light

light-weight

BT-DN300 Built-In DI2 Battery - For Dura-Ace 9250 and Ultegra R8150 Systems Wetsuit Care The Hyper Hammer 5Shimano 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 Compatible with thinner, next generation electric SD300 wires and R9250 and R8150 series systems Features three SD300 wire