{"product_id":"25-roller-chain-single-strand-6-35mm-pitch-04c-0-5m","title":"1\/4\" #25 Roller Chain Single Strand Pitch 6.35mm 04C Roller Chain 25H-82L x 0.5M","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e#25 Roller Chain — Single Strand 6.35mm Pitch for Reliable Power Transmission\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or undersized drive chain causes slippage, skipped links, or unexpected downtime, the fix starts with choosing the right replacement. Makers, hobbyists, and light-industrial operators who need a compact yet dependable chain for low-to-medium load applications will find the #25 (04C) single-strand roller chain a go-to solution.\u003c\/p\u003e\n\u003cp\u003eThis listing covers a single-strand #25 roller chain with a 6.35 mm (1\/4 in) pitch, supplied in a 0.5 m (approximately 19.7 in) length containing 82 links (25H-82L). The chain is constructed from carbon steel with precision-formed rollers and press-fit pins, delivering consistent engagement across compatible sprockets.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include go-kart and mini-bike final drives, small conveyor systems requiring a #25 pitch chain, DIY power-transmission projects such as motorized bicycles or robotics platforms, and light agricultural or workshop equipment where a compact 6.35 mm pitch roller chain is specified.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits all standard #25 \/ 04C \/ 25H sprockets with a 6.35 mm (1\/4\") pitch. Verify sprocket tooth count and bore size before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These #25 Roller Chains\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n    \u003cstrong\u003ePrecise 6.35 mm Pitch\u003c\/strong\u003e\n    \u003cp\u003eMatches the ANSI #25 \/ ISO 04C standard exactly, ensuring drop-in compatibility with any conforming sprocket without modification.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n    \u003cstrong\u003eSingle-Strand Construction\u003c\/strong\u003e\n    \u003cp\u003eCompact single-row design keeps weight and width to a minimum — ideal for space-constrained drive systems on go-karts, mini bikes, and robotics.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n    \u003cstrong\u003e82-Link \/ 0.5 m Length\u003c\/strong\u003e\n    \u003cp\u003ePre-cut to 82 links (≈ 0.5 m \/ 19.7 in), ready to install or trim to your required loop length with a standard chain breaker tool.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n    \u003cstrong\u003eCarbon Steel Rollers \u0026amp; Pins\u003c\/strong\u003e\n    \u003cp\u003eHardened carbon steel components resist wear under repeated load cycles, maintaining consistent pitch accuracy over extended service life.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n    \u003cstrong\u003eSmooth, Low-Noise Operation\u003c\/strong\u003e\n    \u003cp\u003ePrecision-formed rollers seat cleanly on sprocket teeth, reducing vibration and noise — important for indoor workshop and hobby applications.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n    \u003cstrong\u003eEasy to Cut \u0026amp; Connect\u003c\/strong\u003e\n    \u003cp\u003eWorks with standard #25 master links (sold separately) for quick loop assembly. Cut to length with any chain breaker compatible with 6.35 mm pitch chains.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — #25 Roller Chain\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eChain Standard\u003c\/th\u003e\n\u003ctd\u003eANSI #25 \/ ISO 04C \/ 25H\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePitch\u003c\/th\u003e\n\u003ctd\u003e6.35 mm (1\/4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStrand\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNumber of Links\u003c\/th\u003e\n\u003ctd\u003e82 (25H-82L)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e0.5 m (approx. 19.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRoller Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInner Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural \/ uncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBreaking Load\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.15 kg per 0.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this chain fits my sprocket?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis chain conforms to the ANSI #25 \/ ISO 04C standard with a 6.35 mm (1\/4 in) pitch. Any sprocket labeled #25, 04C, or 25H with the same pitch will be compatible. Confirm the sprocket's tooth profile and bore size match your shaft before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eIs 0.5 m enough for my application, or can I order more?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis listing supplies one 0.5 m (82-link) section. For longer runs, order multiple sections and join them with standard #25 master links (sold separately). Always measure your required loop length — center-to-center distance × 2 plus sprocket circumference — before purchasing.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eWhat tools do I need to cut and connect this chain?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYou will need a chain breaker tool rated for #25 \/ 6.35 mm pitch chains to push out pins cleanly. To close the loop, use a #25 master link and a pair of snap-ring pliers or a master-link clip tool. No welding or special equipment is required.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eHow strong is a #25 roller chain?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eStandard ANSI #25 single-strand roller chain has a typical minimum breaking load of approximately 3.1 kN (700 lbf). Actual working load limits depend on speed, lubrication, and sprocket alignment. For high-load or high-speed applications, consider upgrading to a #35 or #40 chain.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this chain require lubrication?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Like all roller chains, the #25 chain performs best when lubricated regularly with a chain-specific oil or spray lubricant. Lubrication reduces pin-bushing wear, prevents rust, and extends service life — especially in outdoor or high-cycle environments.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eIs this chain corrosion-resistant?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis chain is made from carbon steel with a natural finish and is not inherently corrosion-resistant. For wet or outdoor environments, apply a rust-inhibiting chain lubricant regularly. If corrosion resistance is a primary requirement, consider a stainless steel #25 chain variant.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eCan I use this chain on a go-kart or mini bike?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — the #25 roller chain is one of the most common drive chains for go-karts, mini bikes, and small motorized vehicles. Verify that your engine sprocket and rear axle sprocket are both rated for #25 chain, and ensure the chain length suits your wheelbase and sprocket center distance.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your length or quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I know if this chain fits my sprocket?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This chain conforms to the ANSI #25 \/ ISO 04C standard with a 6.35 mm (1\/4 in) pitch. Any sprocket labeled #25, 04C, or 25H with the same pitch will be compatible. Confirm the sprocket's tooth profile and bore size match your shaft before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is 0.5 m enough for my application, or can I order more?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This listing supplies one 0.5 m (82-link) section. For longer runs, order multiple sections and join them with standard #25 master links (sold separately). Always measure your required loop length before purchasing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tools do I need to cut and connect this chain?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"You will need a chain breaker tool rated for #25 \/ 6.35 mm pitch chains to push out pins cleanly. To close the loop, use a #25 master link and a pair of snap-ring pliers or a master-link clip tool.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is a #25 roller chain?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard ANSI #25 single-strand roller chain has a typical minimum breaking load of approximately 3.1 kN (700 lbf). Actual working load limits depend on speed, lubrication, and sprocket alignment.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does this chain require lubrication?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Like all roller chains, the #25 chain performs best when lubricated regularly with a chain-specific oil or spray lubricant. Lubrication reduces pin-bushing wear, prevents rust, and extends service life.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this chain corrosion-resistant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This chain is made from carbon steel with a natural finish and is not inherently corrosion-resistant. For wet or outdoor environments, apply a rust-inhibiting chain lubricant regularly.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this chain on a go-kart or mini bike?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — the #25 roller chain is one of the most common drive chains for go-karts, mini bikes, and small motorized vehicles. Verify that your engine sprocket and rear axle sprocket are both rated for #25 chain.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52423171703058,"sku":"GF2520","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of6_c139a4c0-9a93-4bae-8788-b16f9d7d2d72.jpg?v=1782571522","url":"https:\/\/homediyer.com\/products\/25-roller-chain-single-strand-6-35mm-pitch-04c-0-5m","provider":"HomeDIYer","version":"1.0","type":"link"}