Bosch System Controller Battery - The smart system MFPN=HXCRXCXB1 5" Front Axle 15mm Thru

5" Front Axle 15mm Thru x 110mm Tire Type Tubeless Ready Hub/Brake Compatibility 6-Bolt Disc Valve Presta

}Samox Platinum TM-1 Carbon Crankset - 165mm 3-Bolt Direct Mount DUB Spindle Black

8mm Stem Length 70mm 1-1/8" Threadless Black

The EPS Power Unit is the systems source of power as well as the "brain" of the system responsible for managing the battery pack enabling and monitoring the front and rear derailleurs and communicating with the Interface Unit

Bosch System Controller Battery - The smart system MFPN=HXCRXCXB1 5" Front Axle 15mm ThruBosch System Controller Replacement Battery BRC3100 The smart system Compatible. System Controller replacement battery.