
The Shimano Di2 SM-BMR1-S battery mount is the external short battery mount that attaches to a 40mm Di2 specific battery mount typically located on the chain stay on framesets specifically designed to be Di2 compatible. Battery sold separately.
Features
Excel Sports accepts Money Orders, Personal Checks and the following credit cards for payment of orders:
![]()
Sign up for unadvertised offers, specials and discounts