Sram Crankset Quarq Rival Xplr E1 Black

We cut grams out of our aluminum crankarms but didn’t cut corners on power measurement. Our light and accurate spindle-based power unit nestles into our striking redesigned arms to give you the data you need and our newest direct mount chainrings are light and stiff while looking good. - spindle-based unit measures left side power to calculate total watts - long battery life (400+ hours) to power a season of rides - user replaceable aaa lithium battery - dub bottom bracket adds durability and simplicity - waterproof (ipx7 waterproof to 1 meter for 30 mins) - lightweight (less than 40g heavier than standard crankset) - sram x-sync wide-tooth narrow-tooth chainring technology provides maximum chain control -xplr chainline for compatibility with full mount rear derailleurs