TRIWONDER Bike Seatpost Adapter Shim 25.4mm 27.2mm 28.6mm 30.4mm 30.9mm 31.6mm 33.9mm 34.9mm Aluminum Alloy Bicycle Seat Post Tube Adapter for Mountain Bike, Road Bike (27.2mm to 30.4mm)

Features

• ✅ DURABLE & LIGHTWEIGHT - Made of high-quality 6061 aluminum alloy with CNC machining anodizing process surface, which offers high strength and corrosion resistance, ensuring long-lasting use
• ✅ VARIOUS SIZES AVAILABLE - Length: 100mm. Diameter: 25.4mm to 27.2mm/ 28.6mm, 27.2mm to 28.6mm / 30.4mm / 30.9mm / 31.6mm / 33.9mm, 28.6mm to 31.8mm, 31.8mm to 34.9mm
• ✅ EASY TO INSTALL - Just open the seatpost clamp, insert the appropriately sized shim and seatpost, adjust to your desired height, and then lock the seatpost clamp
• ✅ UNIVERSAL FIT - Suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bike, track bike, BMX, DH, etc. Solves the problem of mismatched frame and seatpost sizes
• ✅ ATTENTION - Please measure the correct outside diameter of your seatpost (or check the size marks on the seat post) and your bike frame seat tube inside diameter before buying