Description:Bike seatpost reducer is suit for bicycle, mountain bike, road bike etc.Bicycle seat tube adapter is made of aluminum alloy material, durable and wear-resistant.Bicycle seat tube reducer is CNC turning forming, has clear and neat turning lines.Road bike reducing sleeve is light and beautiful, and the processing precision is precise.Seatpost adapter shim can solve the problem that the size of your frame and the seat tube do not match.Specification:Color: black.Material: aluminum alloy.Size: 60mm.Note:There might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.Package Included:1 x Bike seatpost reducer.