Power on every ride. We have adopted the reliability, elegance, and features of Quarq's legendary wave-based power meter and lowered the entry barrier even further. This new power meter platform is fully integrated into the DUB axle to ensure a clean fit that works with more bikes than ever before. It is an invisible technology that adds minimal weight and helps you reach your destination faster. This allows any eTap AXS bike to be upgraded with power. The wave-based DUB-PWR unit measures power on the left side to calculate total wattage. The longer DUB crankset fits both road and MTB frame bottom bracket standards for unmatched cross-compatibility across all brands.