Compatible with: all the bikes

Perfect weight for layering under fleece or outerwear

certification standard

advanced cleaning mechanics

The rear is made from a breathable mesh and the inside features a silicone elastic webbing

PRO Seatpost Battery Holder - 31.6mm - Black Replace Images Compatible with: all the bikesThe PRO Battery Holder Seatpost is a SHIMANO Di2 battery holder for storing the electronic drivetrain's battery in the seatpost. This clever accessory provides a clean and secure storage solution, keeping the battery protected while maintaining the aerodynamics and aesthetics of your bicycle. The holder comes with a stainless steel tool specifically designed for easy removal of the set when needed for maintenance or battery replacement. Features