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more efficient pedaling with optimal power transfer
The robust construction is designed to withstand the rigors of daily use
making it ideal for carrying during rides
the Coinflip sunglasses offer a comfortable fit with their lightweight construction and ergonomic design
Essential Recovery Complex
Shimano SM-JC41 Junction Box For Di2 - Internal Power Meter more efficient pedaling with optimalThe Shimano SM JC41 Junction Box is a key component of your internally routed Di2 setup. Designed to be hidden within the bike frame, this junction keeps your electronic cabling organized and out of sight for a clean and professional look. Central Connection Hub: This internal junction serves as the central point for all EW SD50 cables connecting your Di2 systemlinking the battery, derailleurs and shift levers. It ensures reliable communication