The SRM SRAM S975 PowerMeter crankset offers exceptional ride performance with precise analysis. This 11-speed Yaw crankset has a compact set of rings for excellent riding performance. The X Glide tooth profile provides excellent shifting performance and chain retention. SRM PowerMeter offers exceptional accuracy and world-class power measurement performance. PowerMeter is mounted by hand by highly trained engineers, ensuring the high quality of each device. The precise design is covered by a three-year global warranty. Moreso SRM PowerMeter is designed to handle it all, from freezing cold to boiling heat, they can handle it all. The device also has seals to protect against rain, snow, mud, sand and a wide range of cleaning agents. SRM PowerMeter is designed to simply work. SRM uses a 144 point calibration protocol to ensure accurate measurement; with accurate calibration and automatic SRM measurement, it provides over 99% of accurate power measurements. SRM PowerMeters have been the benchmark in power measurements for over 20 years, forming the basis of scientific research; The accuracy of SRM has been scientifically proven. SRM SRAM S975 offers excellent accuracy and fantastic performance, providing analytical data to get ready for the race day and the powertrain to get gold.