Shimano Di2 BT-DN300 Battery for Internal Mount
The BT-DN300 Battery by Shimano - The power source for your Di2 shifting systemThe BT-DN300 is a lithium-ion battery developed by Shimano for the Dura-Ace and Ultegra Di2 2x12-speed road groupsets. Like its predecessor, it is installed internally in the fr
$60.50
$120.99
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