If you want to avoid running higher pressures or heavy tyres to prevent damage

certification standard

Tall teeth for chain retention

Contoured palm area with moisture dissipating channels

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 If you want to avoidThe 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