Introducing the new ALDHU 3D+ one-piece oval Spidering with OCP Mount. OCP Mount�s patent-pending proprietary technology allows the oval Spidering to be adjusted in 1-degree increments for optimized pedaling biomechanics. 12.5% ovality heightens the performance advantages of oval chainrings; no other oval chainring in the growing oval chainring category offers the adjustment options plus unique ovality all aimed at improving pedaling performance