The power house of Dura-Ace Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you.
Shimano Sm-Btr1 Battery - Di2
$88.99
The power house of Dura-Ace Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you.
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