--- product_id: 602372582 title: "100mm Long Seatpot Shim 22.2 25.4 26.6 27.2 to 28.6 30 30.4 30.9 31.6 31.8 33.9 34.9 36 Alloy Bicycle Seat Post Tube Adapter" brand: "ganopper" price: "$46.10" currency: USD in_stock: true url: https://www.desertcart.us/products/602372582-100mm-long-seatpot-shim-22-2-25-4-26-6 store_origin: US region: United States of America --- # 100mm length for versatile fit 6061 aluminum alloy CNC precision Fits 22.2-36mm seatpost diameters 100mm Long Seatpot Shim 22.2 25.4 26.6 27.2 to 28.6 30 30.4 30.9 31.6 31.8 33.9 34.9 36 Alloy Bicycle Seat Post Tube Adapter **Brand:** ganopper **Price:** $46.10 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Upgrade your ride, not your wallet! ## Quick Answers - **What is this?** 100mm Long Seatpot Shim 22.2 25.4 26.6 27.2 to 28.6 30 30.4 30.9 31.6 31.8 33.9 34.9 36 Alloy Bicycle Seat Post Tube Adapter by ganopper - **How much does it cost?** $46.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/602372582-100mm-long-seatpot-shim-22-2-25-4-26-6) ## Best For - ganopper enthusiasts ## Why This Product - Trusted ganopper brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Upgrade Path:** Convert your existing seatpost to a dropper or different size with zero hassle. - • **Streamlined 100mm Length:** Optimized length ensures a secure fit without adding bulk or weight. - • **Lightweight & Robust Design:** At just 50g, it balances strength and minimalism for the discerning cyclist. - • **Precision CNC Machined Alloy:** Crafted from durable, anti-rust 6061 aluminum for long-lasting performance. - • **Universal Diameter Compatibility:** Seamlessly adapts seatposts from 22.2mm up to 36mm, eliminating costly replacements. ## Overview The GANOPPER 100mm Long Seatpot Shim is a precision CNC-machined 6061 aluminum alloy adapter that fits a wide range of bicycle seatpost diameters from 22.2mm to 36mm. Designed for durability and lightweight performance, it enables cyclists to easily convert or adjust seatpost sizes, making it an essential upgrade for mountain, road, BMX, and city bikes. ## Description ## Features - Material: bike Seatpost shim is made of high quality 6061 aluminum alloy, CNC machining CD texture surface ,anti-rust and durable - Feature:Use this bike post shim, 31.6 ID Seat Post shim can be converted to 34.9 Dropper seat post, bike seatpost adapter shim can help you change the bicycle seat tube outer diameter to meet your needs - Size: 34.9 to 31.6 seat post shims. Length: 100mm. - Tips: Please check your bike frame seat tube outside diameter. Measure the inside diameter of your old clamp. Or measure the outside diameter of your seat tube (on your bike frame). Then make a right choice. - - -Because of hollow design，In the process of transportation are squeezed may be out of shape，Please kindly exchange one - Application: Bicycle Seatpost reducing sleeve shim matches well with most bicycles, such as MTB ,BMX ,Fixed Gear bike,mountain bike, road bike, city bike and more, you can easily adjust the diameter of the bicycle seat post, eliminating the trouble of repurchasing the bike seatpost. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | GANOPPER | | UPC | 705377245558 | | Bike type | Mountain Bike | | Color | Black | | Size | 31.6 I.D./34.9 O.D. | | Material type | Aluminium | | Sport | Cycling | | Included components | No | | Batteries included? | No | | Department | Unisex | | Manufacturer reference | GNPSM316349 | | Product Dimensions | 3.48 x 3.48 x 9.98 cm; 50 g | | ASIN | B0CPXPR1W5 | ## Product Details - **Colour:** Black - **Item weight:** 0.05 Kilograms - **Material:** Aluminium - **Brand:** GANOPPER - **Product dimensions:** 35W x 100H millimetres ## Images ![100mm Long Seatpot Shim 22.2 25.4 26.6 27.2 to 28.6 30 30.4 30.9 31.6 31.8 33.9 34.9 36 Alloy Bicycle Seat Post Tube Adapter - Image 1](https://m.media-amazon.com/images/I/41KMqJD3I3L.jpg) ## Available Options This product comes in different **Size Name** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/602372582-100mm-long-seatpot-shim-22-2-25-4-26-6](https://www.desertcart.us/products/602372582-100mm-long-seatpot-shim-22-2-25-4-26-6) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*