{"product_id":"fox-2-5-factory-series-12in-air-shock-981-25-051","title":"FOX 2.5 Factory Series 12in Air Shock, 1-5\/8in Shaft, 40\/80","description":"\u003ch4\u003eAdjustable Air Spring Rate for Off-Road Suspension\u003c\/h4\u003e\u003cp\u003eThis FOX air shock uses an adjustable nitrogen charge to tune spring rate for universal off-road motorsport suspension use. The 981-25-051 configuration combines its documented body size, travel, shaft diameter, and valving for competition and trail applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e981-25-051 is a Factory Series air shock with a 2.5 inches body and 12 inches of travel\u003c\/li\u003e\n\u003cli\u003eThe 1-5\/8 inches shaft supports the documented configuration\u003c\/li\u003e\n\u003cli\u003eNormal valving is 40\/80\u003c\/li\u003e\n\u003cli\u003eNitrogen charge pressure provides spring rate adjustment\u003c\/li\u003e\n\u003cli\u003eThe black finish identifies this configuration\u003c\/li\u003e\n\u003cli\u003eUniversal application requires compatible mounts, geometry, and suspension travel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003cth\u003eRestriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eUniversal application\u003c\/td\u003e\n\u003ctd\u003eOff-road\u003c\/td\u003e\n\u003ctd\u003eMotorsport suspension\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eNot vehicle-specific\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Diameter\u003c\/td\u003e\n\u003ctd\u003e2.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e12 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Diameter\u003c\/td\u003e\n\u003ctd\u003e1-5\/8 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Valving\u003c\/td\u003e\n\u003ctd\u003e40\/80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Adjustment\u003c\/td\u003e\n\u003ctd\u003eNitrogen charge pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAir shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd\u003eOne shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eOne Factory Series air shock\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eAbout FOX\u003c\/h4\u003e\u003cp\u003eFOX develops suspension products for off-road, motorsport, and performance applications. Its air shocks use nitrogen pressure and application-specific damping configurations to give builders a tunable suspension component.\u003c\/p\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the 981-25-051?\u003c\/strong\u003e\u003cp\u003eIt is a FOX Factory Series air shock in the configuration listed in the specifications.\u003c\/p\u003e\u003cstrong\u003eIs this shock vehicle-specific?\u003c\/strong\u003e\u003cp\u003eNo. It is a universal off-road component, so the builder must confirm mounting dimensions, motion ratio, clearance, and travel for the intended vehicle.\u003c\/p\u003e\u003cstrong\u003eHow is spring rate adjusted?\u003c\/strong\u003e\u003cp\u003eSpring rate is adjusted by changing nitrogen charge pressure with suitable service equipment and the correct setup procedure.\u003c\/p\u003e\u003cstrong\u003eHow much travel does this shock have?\u003c\/strong\u003e\u003cp\u003eThe documented travel is 12 inches.\u003c\/p\u003e\u003cstrong\u003eWhat shaft size is used?\u003c\/strong\u003e\u003cp\u003eThe shaft diameter is 1-5\/8 inches.\u003c\/p\u003e\u003cstrong\u003eWhat valving does it use?\u003c\/strong\u003e\u003cp\u003eThe normal valving configuration is 40\/80.\u003c\/p\u003e\u003cstrong\u003eWhat is included?\u003c\/strong\u003e\u003cp\u003eThe package contains one air shock. Verify any vehicle-specific mounting hardware separately before installation.\u003c\/p\u003e\u003cstrong\u003eWhat should be checked before installation?\u003c\/strong\u003e\u003cp\u003eConfirm mounts, clearances, suspension travel, motion ratio, nitrogen service requirements, and the intended damping setup before fitting the shock.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the shock dimensions and universal application match the planned suspension geometry.\u003c\/li\u003e\n\u003cli\u003eMeasure available mounting space, ride height, compression clearance, and extension clearance.\u003c\/li\u003e\n\u003cli\u003eSecure the vehicle or chassis and remove the existing component according to the vehicle service procedure.\u003c\/li\u003e\n\u003cli\u003eInstall compatible mounts and position the shock without side loading the shaft.\u003c\/li\u003e\n\u003cli\u003eCheck that the shock moves through the full suspension range without contact or binding.\u003c\/li\u003e\n\u003cli\u003eSet an initial nitrogen pressure and damping setup using the applicable FOX service guidance.\u003c\/li\u003e\n\u003cli\u003eTorque mounting hardware to the vehicle or mount manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003eCycle the suspension again, inspect all clearances, and confirm the setup before normal use.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"FOX","offers":[{"title":"Default Title","offer_id":46508755222607,"sku":"FOX981-25-051","price":678.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/fox981-25-051-01.jpg?v=1787897664","url":"https:\/\/www.blackopsautoworks.com\/products\/fox-2-5-factory-series-12in-air-shock-981-25-051","provider":"Black Ops Auto Works","version":"1.0","type":"link"}