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Shimano E-Tube Di2 Short Battery Mount SM-BMR2-S1

The Di2 E Tube Short Battery Mount SM-BMR2-S1 is for frames that have a Di2 specific battery mount which looks like two holes 37.4mm apart - typically located under the bottom bracket, downtube/bb area or left chainstay. This battery mount is compatible with both internal and external wiring. Battery not included - sold separately.


  • For bike with a Di2 specific battery mount
  • Compatible with both internal and external wiring kits
  • Shimano part number ISMBMR2S1

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