Shimano SM-BTR1 Dura-Ace 7970 and Ultegra 6770 Di2 Battery
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- ShowProduct Information The Shimano Dura-Ace Di2 Battery 7970 is a long-life 7.4V Li-Ion battery that is both compact and re... read more
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The Shimano Dura-Ace Di2 Battery 7970 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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