Shimano Di2 SM-BMR1LB Battery Mount
The Shimano E-Tube SM-BMR1LB Long External Wiring Battery Mount is the long battery mount that attaches to the water bottle mount. Battery sold separately. Use this mount for an external battery mounted to a bottle cage mount on a frameset. E-Tube compatible so it works with Dura-Ace 9070, Ultegra 6870 and Ultegra 6770.
- 45 grams
- Attaches to water bottle mount
- E-Tube compatible
- For use with External cable routing