Full Speed Ahead K-Force SB25 Di2 Seatpost - 27.2 x 350mm Black MFPN=KRS-SB/KRS-SB-02 This is the lightest Eagle

This is the lightest Eagle cassette SRAM has made as well as their our most precise and long lasting

Connectivity ANT+ BT SMART Customizable Screen Yes Heart Rate Monitor Yes Primary Color White Wristband Whitestone/Tidal Blue - Silicone External Sensor Compatibility Speed/Cadence/HR GPS Yes Touchscreen Yes Watch Color Whitestone Solar Charging No Battery Type Lithium Ion

most powerful action possible

}SRAM X5 Rear Derailleur - 9 Speed Medium Cage Silver

Full Speed Ahead K-Force SB25 Di2 Seatpost - 27.2 x 350mm Black MFPN=KRS-SB/KRS-SB-02 This is the lightest EagleK Force Di2 SeatpostOne piece continuous carbon fiber construction Forged alloy Minimal Top Clamp (MTC) UD carbon finish Removable mounting hardware for FSA WE or Di2 battery Length 350 Color Black Weight 197 Diameter 27. 2 Material Carbon Defined Color Black Clamp Style Standard Rails Offset (mm) 25