New power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than everInvisible technology that adds minimal weight and will help train you get to the finish line fasterDUB-PWR spindle-based unit measures left side power to calculate total wattsDUB bottom bracket adds durability and simplicityCompatible with all Road Dub bottom brackets172.5x46/33DUBBlack107mm 4-bolt2x12UPC/EAN/GTIN: 710845864797