SRAM Apex AXS Crankarm Power Meter Upgrade BF PSI and its Di2 parts rely

and its Di2 parts rely on wireless technology to simplify operation and ensure smooth shifting

5 brushes specifically designed for bikes

7 ° is achieved in order to ensure a very fast response behavior under all conditions

The four arms

SRAM Apex AXS Crankarm Power Meter Upgrade BF PSI and its Di2 parts relyAccurate, reliable power measurement is practically a requirement these days, and the SRAM Apex AXS Crankarm Power Meter Upgrade is the easiest way to get precise power numbers. With the technology hidden inside the DUB spindle, it fits almost any bike while remaining completely stealthy. Features DUB PWR spindle based unit measures left side power to calculate total watts Proven reliability and accuracy Long battery life (400+ hours) to power a