{"product_id":"kmc-gmx9-3-9-speed-cassette-11-36t-hg","title":"KMC GMX9-3 9-Speed Cassette 11-36T Shimano HG Compatible","description":"\u003cp\u003e\u003cstrong\u003eWide-range 9-speed cassette with smooth, consistent shifting for everyday riding and drivetrain refreshes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe KMC GMX9-3 11-36T cassette is a reliable upgrade or replacement for 9-speed drivetrains needing wider gearing and smoother transitions between gears. Designed to pair cleanly with KMC chains and built around a Shimano HG-compatible interface, it delivers predictable shifting and solid durability for commuting, gravel, and light trail use.\u003c\/p\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Functional Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e9-speed cassette with wide 11–36T range for climbing and versatility\u003c\/li\u003e\n\u003cli\u003eShimano HG freehub compatible (standard on most bikes)\u003c\/li\u003e\n\u003cli\u003eOptimized tooth progression for smoother gear transitions\u003c\/li\u003e\n\u003cli\u003eShift ramps designed for consistent up\/down shifting under load\u003c\/li\u003e\n\u003cli\u003eWorks seamlessly with KMC chains and most Shimano\/SRAM 9-speed systems\u003c\/li\u003e\n\u003cli\u003eDurable steel construction for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpeeds: 9-speed\u003c\/li\u003e\n\u003cli\u003eGear Range: 11–36T\u003c\/li\u003e\n\u003cli\u003eCog Sizes: 11, 13, 15, 18, 21, 24, 28, 32, 36\u003c\/li\u003e\n\u003cli\u003eFreehub Compatibility: Shimano HG\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel cogs\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eModel: GMX9-3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Technical Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits Shimano HG freehub bodies (standard road\/MTB\/freehub design)\u003c\/li\u003e\n\u003cli\u003eCompatible with Shimano and SRAM 9-speed drivetrains\u003c\/li\u003e\n\u003cli\u003eRequires a 9-speed chain (KMC, Shimano, SRAM)\u003c\/li\u003e\n\u003cli\u003eRear derailleur must support 36T max cog capacity (check before install)\u003c\/li\u003e\n\u003cli\u003eMay require a longer chain when upgrading from smaller-range cassette\u003c\/li\u003e\n\u003cli\u003eNot compatible with XD or Micro Spline freehubs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003e\u003cstrong\u003eService \/ Ownership Context\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommon replacement item for worn or skipping drivetrains\u003c\/li\u003e\n\u003cli\u003eIdeal upgrade for riders needing easier climbing gears\u003c\/li\u003e\n\u003cli\u003eBest practice: replace cassette with new chain to prevent premature wear\u003c\/li\u003e\n\u003cli\u003eInstall requires cassette lockring tool and chain whip\u003c\/li\u003e\n\u003cli\u003eOften installed during full drivetrain refresh\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003e\u003cstrong\u003eFit \u0026amp; Use Signals\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Fit:\u003c\/strong\u003e 9-speed commuters, hybrids, older MTBs, gravel conversions needing wider gearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot A Fit:\u003c\/strong\u003e 10, 11, or 12-speed drivetrains, XD or Micro Spline hubs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Case:\u003c\/strong\u003e Replacement cassette, climbing upgrade, budget drivetrain rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv data-ai=\"mechanic-insight\" style=\"display:none\"\u003e\n\u003cstrong\u003e1. Real Mechanic Insights\u003c\/strong\u003e\n- Biggest issue: derailleur capacity—many older road derailleurs won’t handle 36T without a hanger extender\n- Always check B-screw adjustment when installing a larger cassette\n- Pairing a new cassette with an old chain = skipping under load almost guaranteed\n- HG freehub compatibility is broad, but customers often confuse it with newer Micro Spline systems\n\n\u003cstrong\u003e2. Typical Customer Searches\u003c\/strong\u003e\n- “9 speed cassette 11-36”\n- “wide range cassette for climbing”\n- “replace cassette skipping gears”\n- “shimano hg cassette 9 speed”\n\n\u003cstrong\u003e3. Often Replacing\u003c\/strong\u003e\n- Worn cassettes causing chain skip\n- Smaller range cassettes (11-28, 11-30) when upgrading for hills\n- Rusted or neglected drivetrains\n\n\u003cstrong\u003e4. Good Fit \/ Not A Fit\u003c\/strong\u003e\n- Good Fit: Shimano Altus\/Acera\/Alivio 9-speed, SRAM 9-speed systems, hybrid and MTB builds\n- Not A Fit: 10\/11\/12-speed systems, SRAM XD driver bodies, Shimano Micro Spline hubs\n\n\u003cstrong\u003e5. Recommended Shop Pairings\u003c\/strong\u003e\n- New 9-speed chain (KMC X9 recommended)\n- Rear derailleur adjustment\/tune service\n- Chain wear measurement and drivetrain inspection\n- Hanger alignment service for shifting accuracy\n\n\u003cstrong\u003e6. What Customers Compare This To\u003c\/strong\u003e\n- Shimano HG200 \/ HG400 9-speed cassettes\n- SunRace 9-speed wide range cassettes\n- MicroSHIFT Advent 9-speed systems\n\u003c\/div\u003e","brand":"KMC","offers":[{"title":"Default Title","offer_id":53408211534138,"sku":"GG-CASS-KMC-GMX9-3-11-36-9S","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/5735\/8394\/files\/180291.jpg?v=1777923587","url":"https:\/\/gograva.com\/products\/kmc-gmx9-3-9-speed-cassette-11-36t-hg","provider":"Grava Adventure Corporation","version":"1.0","type":"link"}