{"product_id":"sunrace-cs-m40-7-speed-cassette-11-28","title":"SunRace CS-M40 Cassette – 7-Speed, 11-28T, Shimano HG Compatible","description":"\u003cp\u003eThe SunRace CS-M40 7-speed cassette is a reliable replacement option for older MTB and hybrid drivetrains. With an 11-28T range and steel construction, it’s built for durability and consistent shifting performance on entry-level and commuter bikes.\u003c\/p\u003e\n\n\u003ch3\u003eKey Functional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e7-speed cassette designed for MTB and hybrid drivetrains\u003c\/li\u003e\n\u003cli\u003e11-28T gear range for balanced climbing and cruising\u003c\/li\u003e\n\u003cli\u003eSuper Fluid Drive™ technology for smoother shifting\u003c\/li\u003e\n\u003cli\u003eSteel cogs and lockring for durability\u003c\/li\u003e\n\u003cli\u003eCompatible with Shimano HG-style freehub bodies\u003c\/li\u003e\n\u003cli\u003eDirect replacement for Shimano CS-HG20 \/ HG41\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11-28T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCog Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11, 13, 15, 18, 21, 24, 28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFreehub Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShimano HG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~310g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUCP (Silver)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Technical Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits Shimano HG freehub bodies (standard 8\/9\/10-speed style)\u003c\/li\u003e\n\u003cli\u003eCompatible with 7-speed drivetrains only\u003c\/li\u003e\n\u003cli\u003eWorks with 7-speed chains and derailleurs\u003c\/li\u003e\n\u003cli\u003eCommonly used on older MTB, hybrid, and comfort bikes\u003c\/li\u003e\n\u003cli\u003eMay require a spacer when installed on 8\/9\/10-speed freehub bodies\u003c\/li\u003e\n\u003cli\u003eNOT compatible with 8, 9, 10, 11, or 12-speed systems\u003c\/li\u003e\n\u003cli\u003eNOT compatible with Microspline or SRAM XD\/XDR drivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eService \/ Ownership Context\u003c\/h3\u003e\n\u003cp\u003eThis cassette is typically used for repairs or budget drivetrain replacements. It’s a straightforward install for restoring shifting performance on older bikes without upgrading the entire drivetrain.\u003c\/p\u003e\n\n\u003ch3\u003eFit \u0026amp; Use Signals\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Fit:\u003c\/strong\u003e Older MTB and hybrid bikes with 7-speed drivetrains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Fit:\u003c\/strong\u003e Budget repairs and commuter bikes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Fit:\u003c\/strong\u003e Riders replacing worn-out Shimano HG cassettes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot A Fit:\u003c\/strong\u003e Modern 8–12 speed drivetrains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot A Fit:\u003c\/strong\u003e High-performance or wide-range gearing needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot A Fit:\u003c\/strong\u003e Freehub systems outside Shimano HG standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv data-ai=\"mechanic-insight\" style=\"display:none\"\u003e\nMost common issue is customers confusing 7-speed with 8-speed—they are not interchangeable. Always confirm chain and shifter count. On modern HG freehubs, a spacer is usually required behind the cassette. Great upsell: new chain (7-speed specific) and derailleur adjustment service. If teeth are worn, chain is almost always worn too—replace both to avoid skipping.\n\u003c\/div\u003e","brand":"SunRace","offers":[{"title":"Default Title","offer_id":53249577189690,"sku":"GG-CASSETTE-SUNRACE-CSM40-7SP-11-28","price":20.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/5735\/8394\/files\/18079.jpg?v=1775001766","url":"https:\/\/gograva.com\/products\/sunrace-cs-m40-7-speed-cassette-11-28","provider":"Grava Adventure Corporation","version":"1.0","type":"link"}