{"product_id":"len-performance-ski-shock-polaris-switchback-rush-indy-matryx-54-50000","title":"Len Performance Ski Shock, Polaris Switchback \/ Rush \/ Indy Matryx 2012–2026 (54-50000)","description":"\u003cp\u003eLen Performance LS8-50000 rebuildable ski shock for Polaris trail and crossover sleds: 2012–2014 Pro-Ride Switchback 800, 2015–2021 AXYS Switchback Pro-S \/ Pro-X \/ Adventure \/ SP 144 \/ Assault 144 \/ XCR and Rush Pro-S \/ Pro-X, 2015–2020 Voyageur 600 144, and the 2021–2026 Matryx Indy VR1 \/ XC \/ XCR \/ Adventure \/ SP and Switchback Assault 146 (650, 850, Patriot 9R and Patriot Boost). One part number fits either side. At $522.95 each, it is A2D's value pick for a rebuildable, adjustable reservoir ski shock: clicker adjustment, a reservoir and a serviceable design without the cost of a race-level shock.\u003c\/p\u003e\u003cp\u003eThe ski shocks set how the front end reacts to trail chop, how hard the skis bite in a corner and how much the sled dives on the brakes. This coil-over reservoir shock has 5-click compression and 5-click rebound adjustment plus a threaded body with locking preload rings, so the front end can be set for rider weight and trail conditions instead of running fixed factory valving.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment.\u003c\/strong\u003e Sold each; order two for a pair (Len Performance sells the pair as kit LS8-50000K). Matching Len Performance track shocks: 54-50000F front track with 54-50001R rear track (Switchback Pro-S \/ Adventure, Rush) or 54-50000R rear track (Switchback Assault, SKS 146); 54-50003F \/ 54-50003R for the Indy Matryx. Chassis: Polaris Pro-Ride (2012–2014), AXYS (2015–2021) and Matryx (2021–2026).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment list\u003c\/strong\u003e (Len Performance year\/model lookup)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchback:\u003c\/strong\u003e 2012-2014 800 Switchback; 2015-2020 800 Switchback Pro-S; 2016-2019 600 Switchback Adventure; 2016-2019 800 Switchback Adventure; 2017-2021 600 Switchback Assault AXYS 144; 2017-2019 600 Switchback SP 144; 2017-2020 800 Switchback Assault AXYS 144; 2018-2020 800 Switchback XCR; 2019-2021 600 Switchback Pro-S; 2019-2021 850 Switchback Assault AXYS 144; 2019-2021 850 Switchback Pro-S; 2019-2021 850 Switchback XCR; 2020-2021 600 Switchback XCR; 2021-2026 650 Switchback Assault 146 Matryx; 2021-2026 850 Switchback Assault 146 Matryx; 2023-2026 Patriot Boost Switchback Assault 146 Matryx; 2025 Patriot 9R Switchback Assault 146 Matryx\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoyageur:\u003c\/strong\u003e 2015-2020 600 Voyageur 144\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRush:\u003c\/strong\u003e 2017-2018 800 Rush Pro-X; 2019-2020 600 Rush Pro-S; 2019-2020 800 Rush Pro-S; 2019-2020 850 Rush Pro-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndy:\u003c\/strong\u003e 2021-2023 650 Indy VR1 129 Matryx; 2021-2026 650 Indy VR1 137 Matryx; 2021-2023 850 Indy VR1 129 Matryx; 2021-2026 850 Indy VR1 137 Matryx; 2022 600 Indy SP 129 ES; 2022 600 Indy SP 137 ES; 2022-2026 650 Indy Adventure 137 Matryx; 2022-2024 650 Indy XC 129 Matryx; 2022-2026 650 Indy XC 137 Matryx; 2022-2025 650 Indy XCR 128; 2022-2025 650 Indy XCR 136 Matryx; 2022-2023 850 Indy Adventure 137 Matryx; 2022-2024 850 Indy XC 129 Matryx; 2022-2026 850 Indy XC 137 Matryx; 2022-2025 850 Indy XCR 128 Matryx; 2022-2025 850 Indy XCR 136 Matryx; 2023 650 Indy Adventure X2 Matryx; 2023-2026 650 Indy SP 137 ES Matryx; 2023 Patriot Boost Indy VR1 129 Matryx; 2023 Patriot Boost Indy VR1 137 Matryx; 2025 Patriot 9R Indy XCR 128 Matryx; 2025 Patriot 9R Indy XCR 136 Matryx; 2026 650 Indy XCR 129; 2026 650 Indy XCR 137; 2026 Patriot 9R Indy XCR 129; 2026 Patriot 9R Indy XCR 137\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5-click compression adjustment, tool-free.\u003c\/li\u003e\n\u003cli\u003e5-click rebound adjustment.\u003c\/li\u003e\n\u003cli\u003eAluminum reservoir shock: the remote-style reservoir keeps oil temperature down and damping consistent on long pulls.\u003c\/li\u003e\n\u003cli\u003eFully rebuildable, serviceable shock. Len Performance rebuild kits and replacement parts are available.\u003c\/li\u003e\n\u003cli\u003eHardened chromoly shaft for strength and seal life.\u003c\/li\u003e\n\u003cli\u003eForged aluminum eyelet heads with premium steel and NBR bushings.\u003c\/li\u003e\n\u003cli\u003ePowder-coated spring resists corrosion and holds rate in cold, wet conditions.\u003c\/li\u003e\n\u003cli\u003eThreaded shock body with anodized dual-ring locking preload adjusters: set sag once and it stays set.\u003c\/li\u003e\n\u003cli\u003eSold each.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54-50000 (Len Performance LS8-50000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM part number replaced\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7043757 (per distributor listings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShock location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSki (front suspension), fits left or right\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis \/ platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris Pro-Ride \/ AXYS \/ Matryx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustments\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompression (5) and rebound (5), plus threaded spring preload\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength, extended\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e405 mm \/ 15.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength, compressed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e269 mm \/ 10.6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStroke\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e136 mm \/ 5.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePowder-coated coil spring included, 74.5 mm \/ 2.9 in diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTop eyelet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17 mm ID x 29.5 mm wide (0.7 in x 1.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBottom eyelet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.2 mm ID x 30.1 mm wide (0.7 in x 1.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.85 lb (8 lb shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRebuild kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54-00003 (Len LSR-00003), per Dennis Kirk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eOrdering and installation.\u003c\/strong\u003e Sold each. Ships from stock at our Anchorage shop, or from our distributor's Boise, Idaho warehouse when not on the shelf. In-store pickup is available at checkout. Installation and shock setup are available at A2D Motorsports; call (907) 306-3062 to schedule. Len Performance rebuild kits are available, so the shock can be serviced or re-valved rather than replaced.\u003c\/p\u003e","brand":"Len Performance","offers":[{"title":"Default Title","offer_id":50446069104885,"sku":"54-50000","price":522.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0267\/9029\/files\/len-54-50000.jpg?v=1790126205","url":"https:\/\/a2dmotorsports.net\/products\/len-performance-ski-shock-polaris-switchback-rush-indy-matryx-54-50000","provider":"Shop A2D Motorsports ","version":"1.0","type":"link"}