Specification BikeType : Mountain Bike BikeType1 : Mountain Bike BikeType2 : Road Bike Brand : MUQZI BulletPoint : *Outer Diameter: 22.2mm *Lay-Back: 130mm *Length: 400mm *Material: Steel *Color: Black BulletPoint1 : Lightweight Material: Made of high quality anodized 6061 aluminum alloy and with texture surface, our bike seatpost adapter is lightweight but durable BulletPoint2 : Compatible With: Compatible with most bicycles, Suitable for MTB bike, road bike, etc. This seatpost shim can easily adjust the diameter of the bicycle seat post to fit a larger frame. No more wasting money on repurchasing a new seatpost BulletPoint3 : How to Choose: Please measure the outside diameter of your seatpost, and check your bike frame seat tube inner diameter. Then make a right choice BulletPoint4 : Easy to Use: 1-Open the seat clamp. 2-Put the seat post and shim adapter in. 3-Adjust the post height. 4-Lock the seat clamp BulletPoint5 : Reliable Customer Service: MUQZI always focuses on product quality and service. Any questions, please feel free to contact us. We are here ready to help Color : Black ExternallyAssignedProductIdentifier1 : 741541648695 ExternallyAssignedProductIdentifier2 : 0741541648695 ExternallyAssignedProductIdentifier3 : 00810040114977 GpsrSafetyAttestation : 1 ImportDesignation : Imported IncludedComponents : NO ItemName : MUQZI Bike Seatpost Shim, 100mm Length Aluminum Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve, 25.4-28.6mm ItemPackageDimensions_Height : 17.3 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 8.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bike-seat-posts-and-parts Manufacturer : MUQZI Material : Aluminum ModelName : MQ-SPA-2 ModelNumber : MQ-SPA-2 NumberOfItems : 1 PartNumber : MQ-SPA-2 ProductDescription : MUQZI Seat Post Adapter Shim ProductSiteLaunchDate : 2023-03-09T10:46:56.366Z Size : 25.4 - 28.6mm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 25170000 WarrantyDescription : 1 Year