{"product_id":"fixed-gear-bicycle-cog-13t-18t-carbon-steel-track-bike-sprocket","title":"Fixed Gear Bicycle Cog 13T–18T Carbon Steel Track Sprocket","description":"\n\u003ch2\u003eFixed Gear Bicycle Cog — 13T to 18T | Carbon Steel Track Bike Sprocket\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your fixed-gear or single-speed build with this precision-machined carbon steel cog and lock ring set. Available in 13T, 14T, 15T, 16T, 17T, and 18T tooth counts, this sprocket fits standard threaded rear hubs and pairs with a matching lock ring for a secure, rattle-free drivetrain. Whether you're building a new track bike or refreshing a worn drivetrain, this cog delivers consistent, reliable power transfer on every pedal stroke.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Carbon Steel — tough, wear-resistant, and built for long-term use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCog Threading:\u003c\/strong\u003e B1.37″–24 (approx. 34.8 mm) — Right-hand \/ Clockwise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Ring Threading:\u003c\/strong\u003e B1.29″–24 (approx. 32 mm) — Left-hand \/ Counter-clockwise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Height:\u003c\/strong\u003e Approx. 8 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Tooth Counts:\u003c\/strong\u003e 13T, 14T, 15T, 16T, 17T, 18T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor Options:\u003c\/strong\u003e 6 finishes available to match your build aesthetic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Standard fixed-gear \/ single-speed threaded rear hubs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Cog?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eCarbon steel construction\u003c\/strong\u003e resists stretching and wear for long-lasting drivetrain performance\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eMultiple gear ratios\u003c\/strong\u003e — select the tooth count that best suits your riding style and terrain\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eSecure lock ring system\u003c\/strong\u003e — counter-clockwise lock ring threads prevent back-pedaling from loosening the cog\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eUniversal fit\u003c\/strong\u003e — compatible with most standard fixed-hub threaded rear wheels\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eAvailable in 6 color options\u003c\/strong\u003e — complement your frame and components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFixed-gear (fixie) track bikes\u003c\/li\u003e\n  \u003cli\u003eSingle-speed commuter bikes\u003c\/li\u003e\n  \u003cli\u003eVelodrome and criterium training setups\u003c\/li\u003e\n  \u003cli\u003eDIY bike builds and drivetrain upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on bicycle safety and proper component maintenance, visit the U.S. Consumer Product Safety Commission — Bicycle Safety.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What tooth counts are available for these fixed gear bicycle cogs?\u003c\/h4\u003e\n\u003cp\u003eA: These fixed gear cogs are available in six tooth counts: 13T, 14T, 15T, 16T, 17T, and 18T. A smaller tooth count (e.g. 13T) provides a harder gear ratio suited to flat, high-speed riding, while a larger tooth count (e.g. 17T or 18T) offers an easier ratio that is more comfortable for hilly terrain or everyday commuting.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What threading standard do these cogs use, and will they fit my hub?\u003c\/h4\u003e\n\u003cp\u003eA: The cog uses a right-hand (clockwise) B1.37″–24 thread (approx. 34.8 mm), which is the industry-standard threading for fixed-gear rear hubs. The lock ring uses a left-hand (counter-clockwise) B1.29″–24 thread (approx. 32 mm). This combination is compatible with the vast majority of standard fixed\/track rear hubs on the market.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material are these cogs made from, and how durable are they?\u003c\/h4\u003e\n\u003cp\u003eA: These cogs are precision-machined from carbon steel, which provides excellent hardness and wear resistance. Carbon steel stands up well to the constant engagement of a fixed drivetrain, making it a dependable long-term choice for track bikes, commuters, and training setups alike.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need any special tools to install this cog and lock ring?\u003c\/h4\u003e\n\u003cp\u003eA: Installation requires a cog tool (or chain whip) to thread on the cog and a lock ring spanner to secure the lock ring. The cog threads on clockwise, and the lock ring threads on counter-clockwise — this opposing thread direction ensures the lock ring tightens during normal pedaling, keeping the cog securely in place.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What tooth counts are available for these fixed gear bicycle cogs?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These fixed gear cogs are available in six tooth counts: 13T, 14T, 15T, 16T, 17T, and 18T. 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