Shimano BT-R1A External Di2 Battery Diameter-2.6 The 61k is a fast

The 61k is a fast ski that has shorter pressure zones and wheelbase

Designed for all-day comfort

For dedicated gravity riders with a need for speed nothing gives you more control and confidence than wrapping your hands around a RaceFace Atlas handlebar

Thanks to the unique use of pressure die casting technology the Vault Mag MTB flat pedal achieves these goals

Shimano BT-R1A External Di2 Battery Diameter-2.6 The 61k is a fastShimano Di2 Batteries. Must purchase battery charger and power cable to complete the system. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com Shifter Derailleur Compatibility Shimano Ultegra Di2