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Side reflectors help other road users see you when the light isn’t painting in their direction
Stable drivetrain on rough terrain
which is hugely popular among the racers as well as Endurance athletes
Highly breathable
Shimano Di2 Battery BT-DN 300 Press Fit Side reflectors help other roadThe new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12 speed road derailleurs and shifters (if a fully wired option is selected). With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying