Product Description Super Road chainring. Specifications:Application:RoadMount:110 mm bolt circle diameter, 5-armTeeth:46 T, 50 T, 52 TGearing:2x10-speed, 2x11-speedTechnical Information:Combinations:34-50 T, 36-46 T, 36-52 T, 38-52 TMaterial:aluminium (7075-T6)Features:compatible with Shimano/SRAM 10-/11-speed, Campagnolo 10-speedCNC-machinedanodisedclimbing aids made of stainless steellaser logoModels:black 46 tooth: Possible Gradations: 36-46Type: WA448-46TManufacturer Number: 371-0246A black 50 tooth: Possible Gradations: 34-50Type: WA446-50TManufacturer Number: 371-0250A black 52 tooth: Possible Gradations: 36-52Type: WA447-52TManufacturer Number: 371-0252AContents:1 x FSA Super Type chainring Manufacturer: F.S.A. S.R.L. Via Francesco Petrarca. 4 20123 Milan Italy info@fullspeedahead.com