Batteria Interna Shimano Di2 BT-DN300 ursus The benchmark in puncture protection

The benchmark in puncture protection systems

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Batteria Interna Shimano Di2 BT-DN300 ursus The benchmark in puncture protectionThe new DN300 battery offers the same waterproof structure that Di2 users have loved for generations. Now equipped with 3 ports, it provides stable power to front derailleurs and Shimano 12 speed road shifters (with the fully wired option). With the same dimensions as the previous model, the slim DN300 battery can be housed in seat posts or frames, ensuring a clean aesthetic. Now equipped with 3 ports, the DN300 model simplifies wiring to the front