Shimano BT-DN300 Di2 Battery 12 Speed PSI SRAMSALE thin and highly resistant to

thin and highly resistant to damages and pressure

and also keeps your internal wires and hoses from rubbing on the crank spindle

delivering outstanding ride comfort

Chain Type: HG 12-speed

SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 34T max low sprocket - 2x11-speed

Shimano BT-DN300 Di2 Battery 12 Speed PSI SRAMSALE thin and highly resistant toThe Shimano BT DN300 Di2 Battery (12 Speed) features the same waterproof design Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12 speed road derailleurs and shifters when a fully wired option is selected. The same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames for a clean aesthetic. The third port is for riders who want the redundancy of Shimano's 12 speed Di2