{"product_id":"progressive-suspension-412-series-shock-set-for-harley-davidson-xlh-13-5-inch-chrome-shocks-with-adjustable-spring-preload","title":"Progressive Suspension 412 Series Shocks Harley XLH 13.5 Inch Chrome Adjustable","description":"\u003cdiv\u003e\n\u003ch1\u003eProgressive Suspension 412 Series Shocks for Harley XLH (13.5\" Chrome, Adjustable)\u003c\/h1\u003e\n\u003cp\u003eUpgrade your vintage Harley with Progressive Suspension 412 Series shocks—13-1\/2 inches long, chrome exterior with a black cartridge, and nitrogen charged for a smooth, controlled ride. Six-stage automatic damping delivers consistent performance over varied road conditions, while adjustable spring preload lets you fine‑tune stiffness for your weight and riding style.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e13-1\/2 inch length measured from center of eyelet to center of eyelet\u003c\/li\u003e \u003cli\u003eChrome shock cartridge with black finish for modern aesthetics\u003c\/li\u003e \u003cli\u003eNitrogen charged with six-stage automatic damping\u003c\/li\u003e \u003cli\u003eAdjustable spring preload to customize suspension stiffness\u003c\/li\u003e \u003cli\u003eMade in the USA from high‑quality materials\u003c\/li\u003e \u003cli\u003ePart number: 412-4018C\u003c\/li\u003e \u003cli\u003eThe set does not include mount studs; available separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility is for early Harley models from 1957 to 1966, making these shocks a targeted upgrade for vintage riders seeking improved ride quality and stability. The measurement from center to center ensures proper fitment on eligible frames, and you should note that installing these shocks or a lowering kit will reduce ground clearance, so exercise caution on rough terrain or aggressive cornering.\u003c\/p\u003eChrome Progressive Suspension 412 Series shocks 13-1\/2 inch are manufactured from the finest material available.\n\u003cp\u003eUpgrade your Harley Davidson XLH with the Progressive Suspension 412 Series Shock Set, designed for optimal ride comfort and handling. These 13-1\/2 inch chrome shocks are nitrogen charged and feature six-stage automatic damping, providing a smooth and controlled ride over a variety of road conditions. The adjustable spring preload allows you to fine-tune the suspension to match your weight and riding style, enhancing stability and comfort during long rides or aggressive cornering. The black shock cartridge adds a sleek appearance, complementing the chrome exterior for a modern, polished look. Compatibility with early Harley models from 1957 to 1966 makes these shocks a versatile upgrade for vintage motorcycle enthusiasts. The shocks are measured from center of eyelet to center of eyelet, ensuring proper fitment and performance. Note that installing these shocks or a lowering kit will reduce ground clearance, so caution is advised when traversing bumps or turns to avoid bottoming out. Designed and manufactured in the USA, these shocks promise durability and high-quality performance that meets the demanding standards of motorcycle enthusiasts. The set does not include mount studs, which can be purchased separately for a complete installation. Whether you're restoring a vintage Harley or seeking improved ride quality, the Progressive Suspension 412 Series shocks offer a reliable and stylish solution for your motorcycle's suspension needs.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eNitrogen charged with six-stage automatic damping for smooth ride\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eAdjustable spring preload to customize suspension stiffness\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eChrome shock cartridge with black finish for aesthetic appeal\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eMeasurement from center of eyelet to center of eyelet ensures proper fit\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eMade in the USA with high-quality materials\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompatible with Harley Davidson XLH models from 1957 to 1966\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson K 1953\u003cbr\u003e\nHarley Davidson K 1954\u003cbr\u003e\nHarley Davidson K 1955\u003cbr\u003e\nHarley Davidson K 1956\u003cbr\u003e\nHarley Davidson XLCH 1957\u003cbr\u003e\nHarley Davidson XLCH 1958\u003cbr\u003e\nHarley Davidson XLCH 1959\u003cbr\u003e\nHarley Davidson XLCH 1960\u003cbr\u003e\nHarley Davidson XLCH 1961\u003cbr\u003e\nHarley Davidson XLCH 1962\u003cbr\u003e\nHarley Davidson XLCH 1963\u003cbr\u003e\nHarley Davidson XLCH 1964\u003cbr\u003e\nHarley Davidson XLCH 1965\u003cbr\u003e\nHarley Davidson XLCH 1966\u003cbr\u003e\nHarley Davidson XLCH 1967\u003cbr\u003e\nHarley Davidson XLCH 1968\u003cbr\u003e\nHarley Davidson XLCH 1969\u003cbr\u003e\nHarley Davidson XLCH 1970\u003cbr\u003e\nHarley Davidson XLCH 1971\u003cbr\u003e\nHarley Davidson XLCH 1972\u003cbr\u003e\nHarley Davidson XLCH 1973\u003cbr\u003e\nHarley Davidson XLCH 1974\u003cbr\u003e\nHarley Davidson XLCH 1975\u003cbr\u003e\nHarley Davidson XLCH 1976\u003cbr\u003e\nHarley Davidson XLCH 1977\u003cbr\u003e\nHarley Davidson XLCH 1978\u003cbr\u003e\nHarley Davidson XLH 1957\u003cbr\u003e\nHarley Davidson XLH 1958\u003cbr\u003e\nHarley Davidson XLH 1959\u003cbr\u003e\nHarley Davidson XLH 1960\u003cbr\u003e\nHarley Davidson XLH 1961\u003cbr\u003e\nHarley Davidson XLH 1962\u003cbr\u003e\nHarley Davidson XLH 1963\u003cbr\u003e\nHarley Davidson XLH 1964\u003cbr\u003e\nHarley Davidson XLH 1965\u003cbr\u003e\nHarley Davidson XLH 1966\u003cbr\u003e\nHarley Davidson XLH 1967\u003cbr\u003e\nHarley Davidson XLH 1968\u003cbr\u003e\nHarley Davidson XLH 1969\u003cbr\u003e\nHarley Davidson XLH 1970\u003cbr\u003e\nHarley Davidson XLH 1971\u003cbr\u003e\nHarley Davidson XLH 1972\u003cbr\u003e\nHarley Davidson XLH 1973\u003cbr\u003e\nHarley Davidson XLH 1974\u003cbr\u003e\nHarley Davidson XLH 1975\u003cbr\u003e\nHarley Davidson XLH 1976\u003cbr\u003e\nHarley Davidson XLH 1977\u003cbr\u003e\nHarley Davidson XLH 1978\u003c\/div\u003e","brand":"Progressive Suspension","offers":[{"title":"Default Title","offer_id":44652184895530,"sku":"54-2009","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/54-2009a.jpg?v=1785871943","url":"https:\/\/atticusgoods.com\/products\/progressive-suspension-412-series-shock-set-for-harley-davidson-xlh-13-5-inch-chrome-shocks-with-adjustable-spring-preload","provider":"Atticus Goods","version":"1.0","type":"link"}