EW-EC300 Charging Cable Shuttlecocks The Graphene technology is being

The Graphene technology is being used to strengthen the frame for enhanced stability and power

Dual ring Closure

which allows a good transfer of the various playing techniques to the ball

Compatible with wide range cassette

Compatible with 11 speed derailleurs only

EW-EC300 Charging Cable Shuttlecocks The Graphene technology is beingThe new EC300 charging connector is designed specifically for Shimano's 12 speed Di2 road drivetrains. Connected via the rear derailleur, it is also compatible with Shimano power meters. Charging of the new Shimano 12 speed Di2 road drivetrains is now accomplished with the EC300 charger cord. Attached to the rear derailleur, this new cord is less expensive than previous chargers and can also be used to charge Shimano power meters.