Schwinn 4IIII Powermeter Crank

With a rich history in developing sports technology, 4iiii innovations has worked hand-in-hand with the world’s best cyclists to develop an industry-leading powermeter. Using patented 3D strain gauge technology, the 4iiii crank delivers accurate, reliable and consistent data. Trusted by the best athletes in the world, the same technology is now available to indoor riders. Whether it’s tracking calories or in-depth power analysis, the 4iiii crank offers accurate results to help riders reach their full potential.