Roller Chain Sprocket Information25 Chain Sprocket Sizes#35 Chain Sprocket Sizes#40 Chain Sprocket Sizes #50 Chain Sprocket Sizes #60 Chain Sprocket Sizes##80 Chain Sprocket Sizes#100 Chain Sprocket SizesAdditional sizes available upon request.Please contact us at 216.281.2400 or via email at abl@ablproducts.com.