Shimano Di2 Battery Holder - SeatpostShimano Di2 Battery Holder Seatpost PRO Components Seatpost Battery Holder To Position the Shimano Di2 Battery Inside the Seatpost Includes the Stainless Steel Tool to Remove the Set For 30. 9 31. 6mm Seaposts

Application: Urban Sport

Accurate adjustments

0 to enhance bike control

Increased heat stability

Tubeless-ready - the ability to run lower air pressures

allowing you to park your bike by the front or rear wheel with confidence and stability

even in the most extreme   situations

Intended for use on professionally maintained courses

3mm wider than Rapid 30 with no weight gain

Front Only

BMX-style horizontal forged dropouts allow for easy rear wheel adjustment that eliminates unwanted movement

EXTRA-LARGE STORAGE HOOK — WOOD THREAD