NEW Shimano BT-DN300 Built-In DI2 Battery - For Dura-Ace 9150 and Ultegra R8150 Systems Compatible with SD300 Wires price_changed_on_2022-07-07 ED Hardened Steel Cogs

ED Hardened Steel Cogs

Shape: Round

File tread center pattern offers low rolling resistance on smoother terrain and increased grip when the road gets rough

Tire Diameter: 700c

Aramid protection and Helcor abrasion resistant leather panels are specifically designed to be extremely durable against rubbing

NEW Shimano BT-DN300 Built-In DI2 Battery - For Dura-Ace 9150 and Ultegra R8150 Systems Compatible with SD300 Wires price_changed_on_2022-07-07 ED Hardened Steel CogsShimano 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