Specification Brand : SHIMANO BulletPoint : Perfect symmetry is rare in nature, and cyclists are no exception. In fact, it's not uncommon for one leg to be longer than the other. To compensate for such discrepancies, Shimano has developed stackable cleat spacers that provide between 1 mm and 5 mm of height-adjustment range. BulletPoint1 : Large size: This package contains two different sizes, 30mm, 40mm, larger size allows you to put in place in one step, the two sizes can overlap seamlessly. BulletPoint2 : Materials: Woven carbon fiber, woven carbon, heat-resistant, impact-resistant, sturdy and durable, beautiful appearance, light weight. BulletPoint3 : Feature: Carbon fiber headset spacer resistant to corrosion, more sturdy, durable, Lighter and harder than aluminum alloy headset spacer. BulletPoint4 : Appearance: automatic cutting, all sizes can be stacked seamlessly, smooth edge, delicate texture and durable. BulletPoint5 : Compatible Dimensions: The inner diameter is about 28.6 mm, the outer diameter is 34.9 mm, the total weight is about 35g. Perfect for most mountain bikes, road bikes, and 28.6 mm front bar fork bikes. Color : black Department1 : mens Department2 : mens ExternallyAssignedProductIdentifier : 4550170585419 ExternallyAssignedProductIdentifier1 : 689228933736 ExternallyAssignedProductIdentifier2 : 0689228933736 GpsrSafetyAttestation : 1 ImportDesignation : Imported IncludedComponents : Transmissions ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 7.25 inches ItemDisplayDimensions_Width : 3.75 inches ItemDisplayWeight : 0.16 pounds ItemName : Shimano SM-SH20 SPD-SL Cleat Spacer Set ItemPackageDimensions_Height : 11.9 centimeters ItemPackageDimensions_Length : 3.2 centimeters ItemPackageDimensions_Width : 8.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bike-headset-spacers Manufacturer : Shimano Material : Aluminum Material1 : aluminum_alloy Material2 : carbon Material3 : carbon_fiber ModelName : FBA_Y40B98150 ModelNumber : FBA_Y40B98150 NumberOfBoxes : 1 NumberOfItems : 2 NumberOfLithiumIonCells : 1 NumberOfLithiumMetalCells : 1 PackageLevel : unit PartNumber : FBA_Y40B98150 Pattern : Solid ProductDescription : 2 M ---Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity.--2 M----4/1(30 *60099986s(068s)3/2/25 9/29:11:ari--19:10/01:ari----1:rtn on 12/29 122624(10:12/27/24:ARI 30425(10:3/6ar 70325(10:7/7 ProductSiteLaunchDate : 2012-07-15T13:13:40.615Z Size : One Size SupplierDeclaredDgHzRegulation : unknown TargetAudience : Adult-Unisex UnitCount : 1 UnspscCode : 25174700