Shimano Battery Case for Sm-BTR2

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This is the Shimano Battery Case for Sm-BTR2. The SM-BTC1 mounts Shimano’s SM-BTR2 on a bike’s water bottle bosses and also acts as a Junction B, connecting wires from the shifters to the battery and derailleur.


  • SM-BTC1 mounts current SM-BTR2 battery externally next to bottle cage
  • Low profile design mounts toany frame with bottle cage mount
  • Junction B function
  • Six E-tube wiring ports with cable organizer
  • Clean appearance thanks to internal wire routing
  • System expansion thanks to E-tube platform

    Sizing     Sizing

This product was added to our catalog on September 2, 2015.