Di2 EXTERNAL BATTERY

E-tube platform offers optimum flexibility on your bike.
  • pretty_bullet.png Extremely reliable
  • pretty_bullet.png Li-Ion 7.4V technology
  • pretty_bullet.png High performance
  • pretty_bullet.png 1000 miles/1600 km average
  • pretty_bullet.png Easy mounting
  • pretty_bullet.png Fits any road bike & has quick release for easy charging