Shimano SM-EW90-B Di2 Junction A 5 Port for TT Swim-Accessories-Open Water And with a sub-12kg bike

And with a sub-12kg bike that handles

Sloped rear section provides maximum hip support

When you want to push yourself through that extra 50km

further enhancing the performance of vents and internal channeling that exhaust heat out of the helmet

Shimano SM-EW90-B Di2 Junction A 5 Port for TT Swim-Accessories-Open Water And with a sub-12kg bikeWith Shimano's simplified and improved front junction box (junction A) for 9070 Dura Ace Di2 and 6870 Ultegra Di2, you now have 5 ports for use with both drop bar and TT shifters simultaneously. The new 9070 unit utilizes a rubber strap that cleanly and aerodynamically fastens underneath the stem. Better still, the 5 port junction box has a charging port that makes it possible to charge both internal and external batteries without having to remove