Shimano Dura-Ace / Ultegra Di2 SM-BMR1-I Long Battery Mount For Internal Routing

• SM-BMR1-I long internal type battery mount for internal frame cable routing
• To be mounted on specific Di2 compatible frame battery mounts
• Reliable and secure water resistant connectors
• Battery mount for internal routing
• Easy mount and remove for charging
• Bike frame friendly mount
• Battery sold separately (not included)