This group set contains:

The carefully placed micropores evenly distribute oil to keep the bearing well-lubricated

This rear derailleur

Stay warm and comfortable with the Pas Normal Studios Essential Thermal Long Bibs

it helps keep your bike in prime condition

shimano di2 battery internal mount Bike This group set contains:EW EC300 The 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. FEATURES