Power every ride with the SRAM Rival Quarq 1X Wide Crankset. Taking the reliability, elegance and features of Quarq’s legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever before.The relationship between bottom bracket spindle and bearing is the core of DUB technology. It\'s where stifness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler - better integrating the relationship between chainring, crank, spindle and bottom bracket. It;s the approach to developing a complete system that equals better drivetrain performance.Road bikes are faster and more capable than ever before and riders are expanding what\'s possible with drop bar bikes.X- Range is gearing for today\'s road riding. SRAM have completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings - enabled by AXS. With X - Range, you\'re always in the right gear.KEY FEATURESIntegrated and elegant design.DUB-PWR spindle-based unit measures left side power to calculate total watts.Proven Quarq reliability and accuracy.Long battery life (400+ hours) to pwer a season of rides.User replaceable lithium AAA battery.DUB bottom bracket adds durability and simplicity.Waterproof (IPX7 waterproof to 1 meter for 30 minutes).Lightweight (less than 40g heavier than standard crankset).Direct mount chainrings in 38T through 46T.Wide chainline crankset for bikes with the widest gravel tires.SPECIFICATIONSCRANK ARM LENGTH160mm, 165mm, 170mm, 172.5mm, 175mmBB SPINDLE INTERFACEDUBBB COMPATIBILITYAll SRAM Road WIDE DUB BBsSPEEDS12CHAINRING MATERIALAluminumBOLT CIRCLE DIAMETER (BCD)Direct Mount (DM)CHAINLINE47.5mmCHAINRING SIZE38T, 40T, 42T, 44T, 46THUB SPACING COMPATIBILITYn/a, Standard 142mm