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Rear Derailleur Battery Shimano Di2 BT-DN320
Full wireless technology means an all-new battery. The BT-DN320 fits snuggly and protected within the new wireless XTR rear derailleur and powers the fast and smooth shifting XTR is known for.
Features
- Protected Battery: Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining completely removable for charging.
- Longevity: 305 mAh provides for more riding on one charge.
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