Shimano Battery Case for BTR2 Bottle Cage Mount

Availability: Yes
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Highlighted Features

  • Actual weight: 92 grams complete
  • Mounts to bottle cage bosses
  • Junction B function
  • Six E-Tube wiring ports

At the heart of the Shimano Di2 XTR system is the BTR2 battery, which sits nicely in the Shimano BTC1 Battery Case for BTR2 Bottle Cage Mount. Bolting up to your water bottle cage bosses underneath the cage, the BTR2 houses the battery and acts as the system's B Junction, sending wires out to the rear and front derailleurs. Six wiring ports make sure you'll have the space to add to your drivertrain controls as new products become available.