{"product_id":"ritchey-stem-steerer-shim-steerer-tube-shim-universal-stsm0005","title":"Ritchey Black Alloy Stem Adapter Shim 28.6 to 25.4mm - Lightweight 6061 Aluminum Steerer Tube Reducer for Bike Compatibility \u0026 Enhanced Handling","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your cycling setup with the Ritchey Stem Adapter Shim 28.6 to 25.4mm (1-1\/8\" to 1\") - the ultimate solution for seamless stem and steerer tube compatibility. Crafted from durable black anodized 6061 aluminum, this lightweight adapter weighs only 15 grams, ensuring minimal impact on your bike's performance while delivering superior robustness and corrosion resistance.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eDesigned for versatile use, the Ritchey Stem Adapter Shim reduces the inner stem diameter to adapt to forks with a smaller steerer tube size, specifically converting from 1-1\/8\" to 1\" threaded or threadless steerer tubes. This premium stem shim is perfect for bike builders, repair shops, or cyclists seeking to upgrade or retrofit their existing components without replacing entire assemblies.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eEngineered with precision and high-quality materials, this adapter ensures a secure fit and reliable performance in demanding cycling conditions. Its sleek black anodized finish not only enhances its aesthetic appeal but also provides added durability against scratches and environmental wear. Whether you're customizing a vintage build or optimizing a modern mountain or road bike, this stem shim guarantees compatibility and peace of mind.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003eKey Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003e- Material: Aerospace-grade 6061 aluminum alloy with black anodized coating\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003e- Compatibility: Converts 1-1\/8\" (28.6mm) steerer tubes to fit 1\" (25.4mm) stems\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003e- Compatibility with Threadless Forks and Stems\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e- Lightweight Design: Only 15 grams for minimal weight addition\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003e- Easy Installation: Precise engineering ensures a secure and stable fit\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e- Ideal for: Bike builders, mechanics, and cycling enthusiasts seeking versatile stem compatibility solutions\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eEnhance your bike's modularity and performance with the Ritchey Stem Adapter Shim 28.6 to 25.4mm - the perfect accessory for achieving optimal fit and function in any cycling environment. Trusted by cyclists worldwide for quality and reliability, it's your go-to choice for seamless stem adaptation.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eReduces stem inner diameter from 28.6mm to 25.4mm, enabling compatibility between different steerer tube sizes for versatile bike builds. \u003c\/li\u003e\n\u003cli\u003eConstructed from durable, lightweight black anodized 6061 aluminum alloy, weighing only 15 grams for optimized performance without added weight. \u003c\/li\u003e\n\u003cli\u003eEngineered with precision to ensure a secure, snug fit between 1-1\/8\" and 1\" threaded steerer tubes, maintaining steering stability and control during aggressive riding or touring. \u003c\/li\u003e\n\u003cli\u003eIdeal for upgrading or customizing mountain bikes, road bikes, or commuter bikes, offering seamless adaptability for forks with smaller steerer tubes to suit your riding style. \u003c\/li\u003e\n\u003cli\u003eFeatures sleek black anodized finish and high-quality construction, providing both aesthetic appeal and long-lasting corrosion resistance for reliable performance in all cycling conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Ritchey","offers":[{"title":"Default Title \/ 1-1\/4\" Threadless to 1-1\/8\" Threadless","offer_id":42406329221187,"sku":"STSM0004","price":9.19,"currency_code":"USD","in_stock":true},{"title":"Default Title \/ 1-1\/8\" Threadless to 1\" Threadless","offer_id":42406329253955,"sku":"STSM0005","price":17.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/SM0780.jpg?v=1782512949","url":"https:\/\/365cycles.com\/products\/ritchey-stem-steerer-shim-steerer-tube-shim-universal-stsm0005","provider":"365 Cycles","version":"1.0","type":"link"}