![Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors](https://m.media-amazon.com/images/I/51+iH83A5UL._AC_UF350,350_QL80_.jpg)
Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors
![Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors](https://m.media-amazon.com/images/I/413vbiTvoKL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors
![31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com 31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com](https://i5.walmartimages.com/asr/f1bf53f9-8f92-47e4-a8f0-8c5afd35ad58.f094e68aac932bf15bca0a57c32e9321.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com
![Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors](https://m.media-amazon.com/images/I/71IJh0t-geL._AC_UF350,350_QL80_.jpg)
Amazon.com : Seatpost Adapter Shim, Bicycle Seat Post Tube Adapter, Seatpost Reducing Sleeve Shim for Mountain Bike, Road Bike, MTB, BMX, Fixie Gear. 25.4mm to 27.2mm : Sports & Outdoors
![31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com 31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com](https://i5.walmartimages.com/asr/8b30fcff-84b2-4799-a464-c9b07ce72b81.6033387af2331c081cdf5162772dbc8d.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com
![31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com 31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com](https://i5.walmartimages.com/asr/800abfcf-5595-4fa9-b88f-9d776c610e38.5af4e007c14806557240463223ed58fa.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
31.8 to 34.9mm Bike Bicycle Seat Post Tube Adapter Seatpost Reducing Sleeve Shim Adapter Aluminium Alloy Black - Walmart.com
![MUQZI Seatpost Adapter MTB Road Bike Seat Post Shim 22.2 25.4 27.2 to 28.6 30 30.4 30.8 30.9 31.6 31.8 33.9 34.9 MUQZI Seatpost Adapter MTB Road Bike Seat Post Shim 22.2 25.4 27.2 to 28.6 30 30.4 30.8 30.9 31.6 31.8 33.9 34.9](https://ae01.alicdn.com/kf/S3280d01e85cf4317b6f377a23c0880c22/MUQZI-Seatpost-Adapter-MTB-Road-Bike-Seat-Post-Shim-22-2-25-4-27-2-to.jpg)
MUQZI Seatpost Adapter MTB Road Bike Seat Post Shim 22.2 25.4 27.2 to 28.6 30 30.4 30.8 30.9 31.6 31.8 33.9 34.9
![MUQZI Seatpost Adapter MTB Road Bike Seat Post Shim 22.2 25.4 27.2 to 28.6 30 30.4 30.8 30.9 31.6 31.8 33.9 34.9 MUQZI Seatpost Adapter MTB Road Bike Seat Post Shim 22.2 25.4 27.2 to 28.6 30 30.4 30.8 30.9 31.6 31.8 33.9 34.9](https://ae01.alicdn.com/kf/Sa17c246631054de59170a09f08856db5k/MUQZI-Seatpost-Adapter-MTB-Road-Bike-Seat-Post-Shim-22-2-25-4-27-2-to.jpg)