Shan-S Seatpost Adapter Shim Mountain Bike Bicycle Seatpost Seat Post Tube Adapter Seatpost Reducing Sleeve Shim for Mountain Bike Road Bike and More Universal -25.4 27.2 31.6 30.8 30.4-

Mountain Bike bicycle Seatpost Seat Tube Reducing Sleeve Conversion Sleeve Specifications: Product name: seat tube reducer sleeve CNC machining surface anodizing Material: Aluminum alloy specification: A: 22.2 to 25.4 B: 25.4 to 27.2 C: 25.4 to 28.6 D:27.2 to 28.6 E: 27.2 to 30.4 F: 27.2 to 30.8 G: 27.2 to 30.9 H: 27.2 to 31.6 I: 27.2 to 33.9 J: 31.6 to 33.9 K: 33.9 to 34.9 Aluminum alloy: the metal strength is higher, while keeping the characteristics of aluminum alloy material light, high strength and light weight! Anodizing process: make the color of the protective film produced by the metal more colorful, and it is not easy to rust and paint off after long-term use in rain water CNC cutting, the cut is neat and the lines are smooth Package included 1 X seat tube reducer sleeve bike accessories sports outdoors bicycle bikes cycling lights led bicycle accessories mountain bike light flashlight cycling accessories mountain bike outdoor lighting sport lamp interior design bike lock bicycle seat cover saddle bag fashion cycling locks bike mirrors cycling computers cycling mirrors torch waterproof mount bike lamp carbon head black seats bags motorcycle mini helmet bell fiber battery aluminum sporting goods bike handle bar easy to use tail fashion accessories water red bot