Sram Red e Tap AXS is much more than a simple evolution of its predecessor, it is a revolution, a fully integrated approach to design a groupset that empowers ever more capable riders & the diverse range of bikes that they choose to ride. The carbon tuned Sram Red cranks utilize proprietary Sram carbon lay-up design to increase thickness & stiffness at critical stress areas. Advanced carbon architecture techniques such as tapering, & terracing provide significant weight savings without compromising on strength. The cranks smoothly integrate with a one-piece aluminum chainring design that also ensures the perfect balance of weight & stiffness. The recent development of the 10 tooth smallest cassette sprocket alongside 12-speed cassettes has allowed Sram to re-think gear ratios to offer more range & a smoother gear progression. This new high gear cassette sprocket with a smaller tooth count allowed Sram to pioneer correspondingly smaller chainring sizes with lower gearing whilst still exceeding the gearing range of a traditional single chainring 11-speed drivetrain. As the chainring can be smaller in size it is consequently lighter & more aerodynamic than the 11-speed chainring that would be necessary for an equivalent gear ratio. This chainset also features an aero specific solid face chainring design with a direct mount system that enables easy swapping out to optimize the drivetrain for a certain triathlon or time trial course.