Specification AgeRangeDescription : Adult BikeType : Mountain Bike Brand : Cane Creek BulletPoint : Fits all specs including S-Works models BulletPoint1 : 110 year warrranty BulletPoint2 : Compatible with tapered 1-1/8" to 1-1/2" steerer tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately) BulletPoint3 : 7075 T-6 aluminum cups machined in Fletcher, NC BulletPoint4 : Aluminum dual seal crown race protects lower bearing BulletPoint5 : 110 year warrranty Color : Black Department : unisex ExternallyAssignedProductIdentifier : 6942343326000 ExternallyAssignedProductIdentifier1 : 840226096186 ExternallyAssignedProductIdentifier2 : 0840226096186 ExternallyAssignedProductIdentifier3 : 0400310008398 ExternallyAssignedProductIdentifier4 : 0400310036803 GpsrSafetyAttestation : 1 ImportDesignation : Imported IncludedComponents : 2 bearings ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 2.7 inches ItemDisplayDimensions_Width : 2.8 inches ItemDisplayWeight : 0.1 pounds ItemName : Cane Creek 110-Series Is52/40 Bottom Black, One Size ItemPackageDimensions_Height : 2.54 centimeters ItemPackageDimensions_Length : 7.112 centimeters ItemPackageDimensions_Width : 7.112 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bike-headsets-and-accessories Manufacturer : Cane Creek Material : Aluminum ModelName : Replacement Headset Bearings to Fit Specialized Tarmac SL7 & SL8 Bikes ModelNumber : CKG-HSB110IS5 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfLithiumIonCells : 1 NumberOfLithiumMetalCells : 1 PackageLevel : unit PartNumber : CKG-HSB110IS5 ProductDescription : Building your dream headset may not be a goal on every cyclist's list, but we heartily support the endeavor, and so does Cane Creek. Its 110 Series IS52/40 Bottom represents one of several separately-sold headset pieces that let you choose exactly what will work with your frame and budget, and as its 110 Series, it's the best of the best from a company who only manufactures high-end componentry. Part of Cane Creek's integrated headset line, the IS52/40 comes compatible with a bottom head tube inner diameter of 52. 1mm. Its dual-seal aluminum crown race measures 39. 79mm in diameter and it adds a 1mm to the bottom stack height. Fittingly, Cane Creek includes sealed stainless steel bearings ready to block out grit and water to give you a creak-free ride from now until the next century. Yes, we're serious — the 110 Series comes complete with a 110-year warranty, so with the proper maintenance, (and barring any significant scientific advancements), your headset could very well outlive you. ProductSiteLaunchDate : 2011-01-17T22:44:04.491Z Size : 1.5 x 52mm SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable TargetAudience : Male UnspscCode : 25174700 WarrantyDescription : contact us if have any questions when received the package