The SRAM Quarq RED/Force AXS 107 BCD Power Meter Spider enhances your SRAM AXS crankset, converting it into a power meter. This power meter offers improved accuracy through updates in measurement circuitry, strain gauge design, and software. The AXS platform by SRAM allows electronic integration via the AXS App for battery monitoring, settings customization, maintenance reminders, and firmware updates. AXS compatibility enables easy monitoring and firmware updates, with power upgrades for RED and Force eTap AXS cranksets, ensuring accurate readings in various conditions. The power meter assesses power balance between legs, with a durable CR2032 battery lasting up to 200 riding hours and tool-free replacement.