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![[In Stock] Shimano XTR Di2 SM-BTC1 Battery Mount for Di2 Electronic Shifting System Mountain Bike MTB Cycling](http://ride.grumpy.jp/cdn/shop/products/0000000009202_ba9783b4-f28a-4ba0-b8ff-bc93b3d85fdf_530x@2x.jpg?v=1650220429)
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■External battery holder for built-in battery (SM-BTR2)
■Low-profile design allows attachment to any type of frame bottle cage mount
■Junction B function: 6 E-tube ports, with electric cable storage function.
[000000000920:ec-sm-bct01]
カテゴリー：■Low-profile design allows attachment to any type of frame bottle cage mount
■Junction B function: 6 E-tube ports, with electric cable storage function.
[000000000920:ec-sm-bct01]
タグ：
#9000系XTR #BRAND #GROUP #S #SHIMANO / シマノ #その他 #ディレイラー #ブレーキ・シフター #自転車