Product Description The Cannondale OPI 8-arm Chainring Set - Made in one piece The OPI SpideRing chainring set in an eye-catching 8-arm design is 3D forged from a single piece of aluminium and enables highly-precise shifting when road cycling. Specifications:Application:RoadAttachment:FSA Direct MountTeeth:30-46 T, 34-50 T, 36-52 TTechnical Information:Material:AluminiumFeatures:one-piece 3D forged with OPI technologyprecise shiftingeye-catching designlight, durable and stiffTechnology:OPI One Piece Integration (OPI) refers to a 3D forging technology that makes it possible to produce components from one part in several steps, which are traditionally made up of several parts joined together. Manufacturer Numbers:30-46 tooth:CP2319U10OS34-50 tooth:KP407/36-52 tooth:KP408/Contents:1 x Manufacturer: Cycling Sports Group Europe B.V. Geeresteinselaan 57 3931 Woudenberg Netherlands info@cyclingsportsgroup.com