{"product_id":"corona-fsa-gossamer-bcd90-64-30t","title":"FSA Gossamer bcd90 64 chainring - 30T","description":"\u003ch3\u003eFSA Gossamer BCD90 Chainring: Optimal Performance for Modern Groupsets\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFSA Gossamer inner chainring\u003c\/strong\u003e is a reliable solution for those seeking quality components in the cycling sector. Made from lightweight \u003cstrong\u003ealuminum\u003c\/strong\u003e, this 30-tooth chainring delivers efficient power transfer through the pedal stroke. With a \u003cstrong\u003e90 mm BCD\u003c\/strong\u003e and a 4-bolt configuration, it fits seamlessly into the specified cranksets. Declared compatibility with the \u003cstrong\u003e46-tooth outer chainring\u003c\/strong\u003e ensures a balanced gear ratio for a wide range of riding conditions, while maintaining consistent system mechanics.\u003c\/p\u003e\n\u003ch3\u003eTechnical Compatibility and Groupset Versatility\u003c\/h3\u003e\n\u003cp\u003eThis component is designed to work in synergy with \u003cstrong\u003eShimano 10\/11-speed groupsets\u003c\/strong\u003e, \u003cstrong\u003eSRAM 10\/11-speed\u003c\/strong\u003e and FSA 11-speed, delivering broad versatility. The \u003cstrong\u003eFSA Gossamer crank\u003c\/strong\u003e is the primary design reference, defining the geometric and mechanical specifications. Its adaptability to multiple drivetrain standards makes this product particularly suitable for upgrades or replacements on \u003cstrong\u003eroad bikes\u003c\/strong\u003e equipped with these drivetrains. The precision construction maintains tight tolerances, essential to prevent slippage and ensure smooth engagement.\u003c\/p\u003e\n\u003ch3\u003eComponent Installation and Maintenance\u003c\/h3\u003e\n\u003cp\u003eInstallation of the \u003cstrong\u003einner chainring\u003c\/strong\u003e requires attention to alignment with the locking holes on the crank, ensuring that the \u003cstrong\u003ebolt circle\u003c\/strong\u003e is correctly centered. Periodic maintenance includes cleaning and checking tooth wear, which is particularly important to maintain consistent performance over time. Being made from lightweight material, the chainring helps reduce the overall weight of the crankset, a key factor for cyclists focused on aerodynamic performance and energy efficiency while riding.\u003c\/p\u003e\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNumber of teeth: 30T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBCD\u003c\/strong\u003e (Bolt Circle Diameter): 90 mm\u003c\/li\u003e\n\u003cli\u003eHole configuration: 4-bolt\u003c\/li\u003e\n\u003cli\u003eMaterial: aluminum\u003c\/li\u003e\n\u003cli\u003eCrank compatibility: \u003cstrong\u003eFSA Gossamer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDrivetrain compatibility: Shimano 10\/11v, SRAM 10\/11v, FSA 11v\u003c\/li\u003e\n\u003cli\u003eCompatible outer chainring: 46 teeth\u003c\/li\u003e\n\u003cli\u003eType: \u003cstrong\u003einner chainring\u003c\/strong\u003e for compact crankset\u003c\/li\u003e\n\u003cli\u003eMechanical standard: ISO compliant\u003c\/li\u003e\n\u003cli\u003eApplication: \u003cstrong\u003eroad bikes\u003c\/strong\u003e and gravel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fsa","offers":[{"title":"30 \/ Black","offer_id":54681198035290,"sku":"370-0042021050","price":23.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0532\/7139\/6534\/files\/178955-631826632-208165_01_d.webp?v=1788338645","url":"https:\/\/www.all4cycling.com\/en\/products\/corona-fsa-gossamer-bcd90-64-30t","provider":"All4cycling ","version":"1.0","type":"link"}