Shimano Dura Ace / Ultegra Di2 SM-BMR1 Battery Mount Short - External

Dura-Ace Di2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition and taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky. SM-BMR1 short and long external battery mount for external cable routing 

• Type: Short size
• Easy to mount and remove for charging
• Mount on standard frame bottle mounts.
• Water Resistant
• Battery or bolts are NOT included
• Supplied OE direct from manufacturer
• Weight: 33g
• Please note: this item is the older SM-BMR1 NOT the newer BM-DN100S.