Specification AgeRangeDescription : Adult Brand : Yaruijia BulletPoint1 : Size: Top cover: 1 1/8" (28.6mm), bolt: M6x35mm, fits most mountain bikes, road bikes, folding bike Bowl group/Bicycle stem BulletPoint2 : Material: full carbon fiber top cover + titanium alloy bolts, using fully automatic production process, the top cover cut is neat and burr-free, the thread of the bolt is clear, and it fits closely with your bicycle, which can effectively prevent rain and dust and other substances from entering the inside of the handlebar BulletPoint3 : Ultra-light: The total weight of the top cover plus bolts is only less than 10g, which is equivalent to 42% of the weight of aluminum of the same size, but it can be guaranteed to be lighter while the strength remains unchanged BulletPoint4 : Easy to disassemble: Quick release design, convenient and fast, can quickly let you get the best riding experience BulletPoint5 : Worry-free after-sales, if you have any quality problems, please contact us, Yaruijia will provide you with free return service Color : Black ConnectivityTechnology : Wired ExteriorFinish : Carbon Fiber ExternallyAssignedProductIdentifier1 : 791309369010 ExternallyAssignedProductIdentifier2 : 0791309369010 ExternallyAssignedProductIdentifier3 : 840226113777 ExternallyAssignedProductIdentifier4 : 0840226113777 ExternallyAssignedProductIdentifier5 : 0796254162402 ExternallyAssignedProductIdentifier6 : 0751738261798 HeadphonesFormFactor : Over Ear ItemDisplayDimensions_Height : 2.68 inches ItemDisplayDimensions_Length : 2.68 inches ItemName : Yaruijia Full Carbon Fiber Headset Top Cap with Titanium Bolt M6 x 35mm for 1-1/8" MTB Road Bike Stem(Matte) (Black, Matte Top Cap+M6x35mm Bolt) ItemPackageDimensions_Height : 10.6 centimeters ItemPackageDimensions_Length : 0.4 centimeters ItemPackageDimensions_Width : 7.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bike-headsets-and-accessories Manufacturer : Yaruijia ManufacturerGrade : Grade 5 Material : Carbon fiber + Titanium alloy MetalType : Titanium, Titanium Alloy, Alloy ModelNumber : Top Cap+ Titanium Bolt M6x35mm NumberOfItems : 1 PackageLevel : unit PartNumber : Top Cap+ Titanium Bolt M6x35mm ProductDescription : The 40-Series is the workhorse of Cane Creeks headset line-up. Representing the balance of performance, durability and value, the series incorporates all the features necessary for a robust, lightweight, long-lasting headset. Zero stack uppers press into head tube with very little stack height. Lowers are either zero stack or external cup.Steel crown race with integrated sealsSealed black oxide bearingsInterlok spacer compatibleCarbon-friendy compression ring captured in top cover, keeping shims in placeCompatible with tapered 1-1/8 to 1-1/2 steerer tubes, or straight 1-1/8 steerers with a conversion crown race (sold separately)Item SpecificationsColorBlackWeight155Crown Race40Bearing TypeCartridgeDefined ColorBlackS.H.I.S UpperZS44S.H.I.S LowerEC49S.H.I.S. Stem Clamp Diameter28.6 ThreadlessLower Stack Height12Upper Stack Height8 ProductSiteLaunchDate : 2019-06-15T07:00:00.000Z SeriesNumber : 40 Size : Matte Top Cap+M6x35mm Bolt Style : Modern SupplierDeclaredDgHzRegulation : not_applicable TargetGender : unisex UnspscCode : 31161500