Pro Series Battery Holder 30.9-31.6mm Seat Post trail DT Swiss EXP internals and

DT Swiss EXP internals and SINC ceramic bearings deliver silky-smooth efficiency and outstanding durability

Lower tyre pressure without compromise and unleash the true potential of your ride

There are now 2 cases to choose from the original Quad Lock and the new Quad Lock MAG

Pipette system for easy application

There is also a sunglasses docking port to stash your sunnies when you don’t need them

Pro Series Battery Holder 30.9-31.6mm Seat Post trail DT Swiss EXP internals andGrab this rubber compound PRO BATTERY HOLDER to position your Shimano Di2 battery inside the seatpost of your bike. This product is designed to perfectly suit the PRO PLT Seat Post and also other posts with a 30. 9 31. 6mm diameter.