Shimano SM-BTC1 External Battery Case for SM-BTR2 Bottle Cage Mount
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SM-BTC1 external battery mount case for cylindrical (external) battery (SM-BTR2).
- Low profile design easily mounts to any type of frame with bottle cage mounts
- Known as junction B with 6 E-tube ports and cable organiser
Occasionally, without notice, manufacturers change product design and/or specifications.