The SRAM RED crankset leverages a pivotal design innovation: smaller chainrings and a wider cassette range. This leads to smoother and faster shifting up front and more useful gearing for today’s riders. The new configurations improve cadence and efficiency while also delivering shifts that are crisp, clean and quick—every time. Features X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear Improved front shifting performance for crisp and accurate front shifts Unique chainring design results in a lighter weight, stiffer, more durable crankset DUB bottom bracket adds durability, simplicity and broad compatibility Power upgradeable Teeth: 48 - 35. Technologies ExogramHollow Carbon Construction starts in the crank arm and extends into the crank’s spider, maximizing the stiffness to weight ratio. DUB The relationship between bottom bracket spindle and bearing is the core of DUB technology. It’s where stiffness 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 this approach to developing a complete system that equals better drivetrain performance. X-Range 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 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.