{"product_id":"bike-headset-expander-star-nut-top-cap-1-1-8-fork-22-25mm","title":"Bike Headset Expander Star Nut Top Cap 1-1\/8\" Fork 22-25mm","description":"\n\u003ch2\u003eBicycle Headset Expander Star Nut \u0026amp; Top Cap Bolt – 1-1\/8\" Fork (22–25mm)\u003c\/h2\u003e\n\u003cp\u003eKeep your front fork headset perfectly secure with this precision-machined \u003cstrong\u003eBicycle Headset Expander Star Nut Plug Bolt\u003c\/strong\u003e from RideRace. Engineered for 1-1\/8\" threadless forks with an expansion range of 21.5–24mm, this top cap stem bolt provides a reliable, rattle-free fit for road bikes, mountain bikes, and commuters alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-machined aluminum alloy body with a stainless steel screw for lasting durability and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits 1-1\/8\" (22–25mm) threadless front forks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpansion Range:\u003c\/strong\u003e 21.5–24mm for a secure, snug fit inside the steerer tube\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 52mm for optimal stem clamping depth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight:\u003c\/strong\u003e Only ~58g (0.06 kg) — won't add unnecessary weight to your setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCNC Knurling \u0026amp; Heat Treatment:\u003c\/strong\u003e Enhanced grip and long-term strength under riding conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RR9394 by RideRace\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRideRace\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRR9394\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy + Stainless Steel Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e52mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpansion Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21.5–24mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1-1\/8\" (22–25mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~58g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcess\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCNC Knurling, Heat Treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Bicycle Headset Expander Star Nut Top Cap Bolt (RR9394)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePlease Note\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eColors may vary slightly due to monitor settings and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow 1–2mm measurement deviation due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more DIY and hardware accessories? Check out these related items in our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – Precision Metal Findings\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-flat-disc-spacer-beads-gold-silver-jewelry-making\"\u003eStainless Steel Flat Disc Spacer Beads – Gold \u0026amp; Silver\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What fork sizes does this bicycle headset expander star nut fit?\u003c\/h4\u003e\n\u003cp\u003eA: This headset expander star nut is designed for 1-1\/8\" (28.6mm outer diameter) threadless front forks with an inner diameter between 21.5mm and 24mm, making it compatible with the most common fork steerer tubes on road bikes, mountain bikes, and hybrid bikes.\u003c\/p\u003e\n\u003ch4\u003eQ: What material is the headset expander made from?\u003c\/h4\u003e\n\u003cp\u003eA: The expander body is CNC-machined from lightweight aluminum alloy and paired with a stainless steel bolt. The heat treatment and knurling process ensure a strong, secure grip inside the steerer tube for reliable long-term performance.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this star nut easy to install without special tools?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The expanding nut design allows for straightforward installation inside the fork's steerer tube using a standard Allen\/hex key. Simply insert the expander, position it at the correct depth, and tighten the stainless steel bolt to expand and lock it in place securely.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What fork sizes does this bicycle headset expander star nut fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This headset expander star nut is designed for 1-1\/8\\\" (28.6mm outer diameter) threadless front forks with an inner diameter between 21.5mm and 24mm, making it compatible with the most common fork steerer tubes on road bikes, mountain bikes, and hybrid bikes.\"}}, {\"@type\": \"Question\", \"name\": \"What material is the headset expander made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The expander body is CNC-machined from lightweight aluminum alloy and paired with a stainless steel bolt. The heat treatment and knurling process ensure a strong, secure grip inside the steerer tube for reliable long-term performance.\"}}, {\"@type\": \"Question\", \"name\": \"Is this star nut easy to install without special tools?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The expanding nut design allows for straightforward installation inside the fork's steerer tube using a standard Allen\/hex key. Simply insert the expander, position it at the correct depth, and tighten the stainless steel bolt to expand and lock it in place securely.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Bike Headset Expander Star Nut Top Cap 1-1\/8\\\" Fork 22-25mm\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/products\/bike-headset-expander-star-nut-top-cap-1-1-8-fork-22-25mm\"}]}\u003c\/script\u003e","brand":"PLUSH","offers":[{"title":"H52MM TY01","offer_id":67207127990347,"sku":"14:10#H52MM TY01","price":17.96,"currency_code":"USD","in_stock":true},{"title":"H52MM TY02","offer_id":67207128023115,"sku":"14:193#H52MM TY02","price":17.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/1071\/0091\/files\/S97fb72c5e19e44ce91e43f1615c389f3O.webp?v=1791515850","url":"https:\/\/plushsaver.com\/products\/bike-headset-expander-star-nut-top-cap-1-1-8-fork-22-25mm","provider":"PLUSH","version":"1.0","type":"link"}