{"product_id":"fox-qs3-rear-track-shock-quick-switch-adjuster-part-number-853-21-009","title":"FOX QS3 Rear Track Shock Quick Switch Adjuster, Part Number 853-21-009","description":"\u003cp\u003eUpgrade the rear suspension performance of select Ski-Doo mountain snowmobiles with the FOX QS3 Rear Track Shock Quick Switch Adjuster. This FOX component features Quick Switch Technology with a three-position knob that lets riders change suspension settings quickly and easily without removing their gloves. The design eliminates the need to count clicks or detents in cold riding conditions, making on-trail adjustments more convenient and consistent.\u003c\/p\u003e\u003cp\u003eFeature: The three-position QS3 adjuster provides distinct suspension settings for changing terrain and riding conditions. Rebound adjustments can promote quicker recovery over consecutive impacts, while increased preload can help improve traction. The lockout setting helps limit weight transfer and trenching, supporting more predictable climbing and easier side-hilling. These adjustments produce noticeable changes in ride feel and handling without requiring complicated setup procedures.\u003c\/p\u003e\u003cp\u003eThis FOX rear track shock component is available for select mountain rear track applications and fits specific Ski-Doo Summit models. Compatible applications include the 2016-2017 Ski-Doo Summit Burton 800R E-TEC with a 154-inch track; 2015-2017 Ski-Doo Summit SP 600 HO E-TEC and Summit SP 800R E-TEC models with 146-inch tracks; and 2016-2017 Ski-Doo Summit Sport 600 Carb models with 146-inch tracks. Verify the exact model, engine, track length, and suspension configuration before ordering.\u003c\/p\u003e\u003cp\u003eManufactured by FOX, this product carries manufacturer and vendor part number 853-21-009. It is designed for riders seeking fast, glove-friendly suspension adjustments and improved control across variable mountain terrain.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQuick Switch Technology with a three-position knob for fast suspension setting changes\u003c\/li\u003e\n\u003cli\u003eGlove-friendly adjustment without removing riding gloves\u003c\/li\u003e\n\u003cli\u003eEliminates counting clicks or detents in freezing conditions\u003c\/li\u003e\n\u003cli\u003eProvides noticeable changes in ride and handling\u003c\/li\u003e\n\u003cli\u003eRebound adjustment supports quicker recovery over consecutive impacts and improved traction with added preload\u003c\/li\u003e\n\u003cli\u003eLockout setting helps limit weight transfer and trenching for more predictable climbing and easier side-hilling\u003c\/li\u003e\n\u003cli\u003eFits select Ski-Doo Summit mountain rear track applications with 146-inch and 154-inch tracks\u003c\/li\u003e\n\u003cli\u003eBrand: FOX\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: 853-21-009\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2015 Ski-Doo Freeride 800R E-TEC 146\"\u003cbr\u003e\n2015 Ski-Doo Freeride 800R E-TEC 154\"\u003cbr\u003e\n2015 Ski-Doo Summit SP 600 HO E-TEC 146\"\u003cbr\u003e\n2015 Ski-Doo Summit SP 800R E-TEC 146\"\u003cbr\u003e\n2015 Ski-Doo Summit X 800R E-TEC 154\"\u003cbr\u003e\n2015 Ski-Doo Summit X 800R E-TEC 163\"\u003cbr\u003e\n2015 Ski-Doo Summit X 800R E-TEC with T3 Package 163\"\u003cbr\u003e\n2016 Ski-Doo Freeride 800R E-TEC 146\"\u003cbr\u003e\n2016 Ski-Doo Freeride 800R E-TEC 154\"\u003cbr\u003e\n2016 Ski-Doo Renegade Backcountry X 800R E-TEC 146\"\u003cbr\u003e\n2016 Ski-Doo Summit Burton 800R E-TEC 154\"\u003cbr\u003e\n2016 Ski-Doo Summit SP 600 HO E-TEC 146\"\u003cbr\u003e\n2016 Ski-Doo Summit SP 800R E-TEC 146\"\u003cbr\u003e\n2016 Ski-Doo Summit SP 800R E-TEC with T3 Package 163\"\u003cbr\u003e\n2016 Ski-Doo Summit Sport 600 Carb 146\"\u003cbr\u003e\n2016 Ski-Doo Summit Sport 800R Power TEK 154\"\u003cbr\u003e\n2016 Ski-Doo Summit X 800R E-TEC with T3 Package 154\"\u003cbr\u003e\n2016 Ski-Doo Summit X 800R E-TEC with T3 Package 163\"\u003cbr\u003e\n2017 Ski-Doo Freeride 800R E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Freeride 800R E-TEC 154\"\u003cbr\u003e\n2017 Ski-Doo Renegade Backcountry 600 HO E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Renegade Backcountry 800R E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Renegade Backcountry X 800R E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Summit Burton 800R E-TEC 154\"\u003cbr\u003e\n2017 Ski-Doo Summit SP 600 HO E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Summit SP 800R E-TEC 146\"\u003cbr\u003e\n2017 Ski-Doo Summit Sport 600 Carb 146\"\u003cbr\u003e\n2017 Ski-Doo Summit X 800R E-TEC 174\"\u003cbr\u003e\n2017 Ski-Doo Summit X 850 E-TEC 154\"\/3.0\"\u003cbr\u003e\n2018 Ski-Doo Freeride 850 E-TEC 146\"\u003cbr\u003e\n2018 Ski-Doo Freeride 850 E-TEC 154\"\/2.5\"\u003cbr\u003e\n2018 Ski-Doo Freeride 850 E-TEC 165\"\u003cbr\u003e\n2018 Ski-Doo Freeride S-38 850 E-TEC 154\"\u003cbr\u003e\n2018 Ski-Doo Renegade Backcountry 600 HO E-TEC 146\"\u003cbr\u003e\n2018 Ski-Doo Summit SP 600 HO E-TEC 146\"\u003cbr\u003e\n2018 Ski-Doo Summit SP 850 E-TEC 146\"\u003cbr\u003e\n2018 Ski-Doo Summit Sport 600 Carb 146\"\u003cbr\u003e\n2018 Ski-Doo Summit X 850 E-TEC 154\"\/3.0\"\u003cbr\u003e\n2019 Ski-Doo Freeride 850 E-TEC 146\"\u003cbr\u003e\n2019 Ski-Doo Freeride 850 E-TEC 154\"\/2.5\"\u003cbr\u003e\n2019 Ski-Doo Freeride 850 E-TEC 165\"\u003cbr\u003e\n2019 Ski-Doo Freeride S-38 850 E-TEC 154\"\u003cbr\u003e\n2019 Ski-Doo Summit SP 600R E-TEC 146\"\u003cbr\u003e\n2019 Ski-Doo Summit SP 850 E-TEC 146\"\u003cbr\u003e\n2019 Ski-Doo Summit Sport 600 Carb 146\"\u003cbr\u003e\n2019 Ski-Doo Summit X 850 E-TEC 154\"\/3.0\"\u003cbr\u003e\n2020 Ski-Doo Freeride 850 E-TEC 146\"\u003cbr\u003e\n2020 Ski-Doo Freeride 850 E-TEC 154\"\/2.5\"\u003cbr\u003e\n2020 Ski-Doo Freeride 850 E-TEC 165\"\u003cbr\u003e\n2020 Ski-Doo Summit SP 600R E-TEC 146\"\u003cbr\u003e\n2020 Ski-Doo Summit Sport 600 Carb 146\"\u003cbr\u003e\n2020 Ski-Doo Summit X 850 E-TEC 154\"\/3.0\"\u003cbr\u003e\n2020 Ski-Doo Summit X 850 with Expert Package E-TEC 154\"\/3.0\"\u003cbr\u003e\n2021 Ski-Doo Freeride 850 E-TEC 154\"\/2.5\"\u003cbr\u003e\n2021 Ski-Doo Freeride 850 E-TEC 165\"\u003cbr\u003e\n2021 Ski-Doo Summit SP 600R E-TEC 146\"\u003cbr\u003e\n2021 Ski-Doo Summit SP 850 E-TEC 146\"\u003cbr\u003e\n2021 Ski-Doo Summit X 850 E-TEC 154\"\/3.0\"","brand":"FOX","offers":[{"title":"Default Title","offer_id":67552002441451,"sku":"530-1230","price":1499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6df0-5f2040e6059f1.png?v=1790732175","url":"https:\/\/ctracingservices.com\/products\/fox-qs3-rear-track-shock-quick-switch-adjuster-part-number-853-21-009","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}