Shimano EW-SD50 Di2 Electric Wire Cables Size:700mm The Thomson Seatpost Collar is

The Thomson Seatpost Collar is made from the same 7000 series alloy as our seatposts and stems

“SM” (20 mm wide) for common tubular rims (width of the gluing channel between 18 and 22 mm)

42mm Presta valve stem

these plugs are designed to provide excellent battery retention and interface perfectly with ENVE carbon seatposts

Shimano EW-SD50 Di2 Electric Wire Cables Size:700mm The Thomson Seatpost Collar isShimano's EW SD50 Electric Wire Cables connect the components of your Di2 groupset, suitable for both internal wire routing and handlebar junction setups. Length Guide Typical Internal Di2 Setup Shifters to Junction A (stem): 350 500mm x2 Junction A to Junction B (internal): 1200mm Front Derailleur to Junction B: 350 500mm Rear Derailleur to Junction B: 750mm Internal Battery (seatpost) to Junction B: 750mm Length Guide Handlebar Junction Setup