SRAM Rival 1x XPLR Powermeter E1 Power Meter CranksetThis SRAM Power Meter Crankset combines advanced aluminum engineering with accessible, high performance power measurement. The lightweight and accurate spindle based DUB PWR unit is neatly integrated within the DUB spindle, providing a clean look while measuring left side power to calculate total watts. This design adds less than 40g to a standard crankset, ensuring your data collection doesn't come at the cost of significant weight. Built for