Pro Series Battery Holder 30.9-31.6mm Seat Post trail • Two zippered hand pockets

• Two zippered hand pockets to stash everything you need for a ride

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

– Cylinder is also possible to give a wide range of lever position options

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

Pipette system for easy application

Pro Series Battery Holder 30.9-31.6mm Seat Post trail • Two zippered hand pocketsGrab 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.