{"product_id":"landrum-springs-bump-stop-spring-1100lb-st1100-lanst1100","title":"Landrum Springs Bump Stop Spring 1100lb ST1100","description":"\u003cp\u003e\u003cstrong\u003eLandrum Springs Bump Stop Spring 1100lb ST1100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLandrum Bump Stop Springs, also called \u003cstrong\u003ebump springs\u003c\/strong\u003e, are secondary suspension springs used to control suspension compression in racing applications. Available in a wide range of spring rates, they help racers manage suspension travel, chassis attitude, and handling under different track conditions.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHow Do Bump Stop Springs Work?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eA bump stop spring works alongside the primary suspension spring. Before the bump spring engages, the primary spring provides the spring resistance to suspension compression. Once the bump spring engages, both springs contribute to resisting additional compression, changing how the suspension responds to increasing loads.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Are Bump Springs Used on Race Cars?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBump springs help racers manage ride height, chassis attitude, and suspension travel during braking, corner entry, and other high-load conditions.\u003c\/p\u003e\n\u003cp\u003eThey also allow racers to use softer primary suspension springs while adding resistance later in suspension travel. This provides another way to control chassis balance and handling without relying on a stiffer primary spring throughout the suspension’s entire range of movement.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen Does a Bump Spring Engage?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eA bump spring begins to engage when suspension compression closes the space between the spring and its opposing contact surface. This space is called the \u003cstrong\u003ebump stop gap\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA larger gap allows more suspension movement before engagement, while a smaller gap brings the bump spring into play sooner. Adjusting the bump stop gap allows racers to fine-tune the point at which the bump spring engages during suspension travel.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat Is the Difference Between a Bump Spring and a Bump Stop?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBoth bump springs and conventional bump stops help control suspension movement, but they resist compression differently.\u003c\/p\u003e\n\u003cp\u003eA bump spring is a steel coil spring with a defined spring rate that provides predictable resistance through its working range. Conventional bump stops are typically made from rubber, polyurethane, or similar compressible materials and generally provide progressively increasing resistance as they compress.\u003c\/p\u003e\n\u003cp\u003eBump springs offer a more linear way to add resistance, while conventional bump stops typically become stiffer with increasing compression. The appropriate choice depends on the suspension setup and desired handling characteristics.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHow Are Landrum Bump Stop Springs Manufactured and Tested?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eLandrum bump stop springs are manufactured in Indiana, USA, using high-quality materials and precision manufacturing processes designed to provide consistent spring rates, durability, and dependable performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHigh-Tensile Chrome-Silicon Steel and Precision Manufacturing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eLandrum manufactures its bump springs from high-tensile chrome-silicon alloy steel, selected for its strength and resistance to fatigue.\u003c\/p\u003e\n\u003cp\u003eAdvanced spring-design software, precision manufacturing, heat treatment, and pressing processes help the springs maintain their original free height and spring rate through repeated compression cycles.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIndividually Rate Tested with Dyno Sheet Verification\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eEvery Landrum bump stop spring is individually rate tested and held to within ±2% of its specified spring rate.\u003c\/p\u003e\n\u003cp\u003eEach spring also includes an individual dyno sheet documenting its tested performance, giving racers verification of the spring’s actual rate rather than relying solely on its advertised specification.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat Bump Spring Sizes and Rates Are Available?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eLandrum Bump Stop Springs are available in multiple lengths and spring rates to accommodate different racing suspension setups.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 1.96 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Lengths:\u003c\/strong\u003e 2.125 and 2.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rates:\u003c\/strong\u003e 300–8,000 lb.\/in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen selecting a bump spring, racers should consider spring rate, applied load, and available travel. Landrum’s bump spring load-deflection tables show the relationship between applied load and spring compression, helping racers compare springs and select the appropriate bump spring for their suspension setup.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions About Bump Stop Springs\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eDo Bump Springs Require Special Mounting Hardware?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBump springs typically require mounting hardware, such as bump cups, to support and position them on the shock shaft. Landrum offers \u003cstrong\u003eBump Cups\u003c\/strong\u003e compatible with its bump springs and various shock shaft diameters.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre Bump Stop Springs Linear or Progressive?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eLandrum Bump Stop Springs are designed to provide a linear spring rate through their working range. This means the additional force required for each inch of compression remains relatively consistent.\u003c\/p\u003e\n\u003ch2\u003eSee How Bump Stop Springs Work in Racing Suspensions\u003c\/h2\u003e\n\u003cvideo\u003ehttps:\/\/landrumspring.com\/wp-content\/uploads\/2021\/11\/How-Bump-Stop-Springs-Improve-Suspension-Performance-and-Prevent-Bottoming-Out-1.mp4\u003c\/video\u003e\n\u003cp\u003e{\u003cbr\u003e\n  “@context”: “https:\/\/schema.org”,\u003cbr\u003e\n  “@type”: “VideoObject”,\u003cbr\u003e\n  “name”: “How Bump Stop Springs Improve Suspension Performance and Prevent Bottoming Out”,\u003cbr\u003e\n  “description”: “Video showing how bump stop springs improve suspension performance and prevent bottoming out.”,\u003cbr\u003e\n  “thumbnailUrl”: “https:\/\/landrumspring.com\/wp-content\/uploads\/2026\/10\/Bump-Stop-Video_1.mp4.00_00_04_28.Still001.jpg”,\u003cbr\u003e\n  “uploadDate”: “2025-03-17T00:00:00-04:00”,\u003cbr\u003e\n  “duration”: “PT49S”,\u003cbr\u003e\n  “contentUrl”: “https:\/\/landrumspring.com\/wp-content\/uploads\/2021\/11\/How-Bump-Stop-Springs-Improve-Suspension-Performance-and-Prevent-Bottoming-Out-1.mp4”,\u003cbr\u003e\n  “embedUrl”: “https:\/\/landrumspring.com\/product-category\/bump-stop-springs\/”,\u003cbr\u003e\n  “url”: “https:\/\/landrumspring.com\/product-category\/bump-stop-springs\/”,\u003cbr\u003e\n  “publisher”: {\u003cbr\u003e\n    “@type”: “Organization”,\u003cbr\u003e\n    “name”: “Landrum Performance Springs”,\u003cbr\u003e\n    “url”: “https:\/\/landrumspring.com\/”\u003cbr\u003e\n  }\u003cbr\u003e\n}\u003c\/p\u003e\n\u003cp\u003e{\u003cbr\u003e\n  “@context”: “https:\/\/schema.org”,\u003cbr\u003e\n  “@type”: “FAQPage”,\u003cbr\u003e\n  “mainEntity”: [\u003cbr\u003e\n    {\u003cbr\u003e\n      “@type”: “Question”,\u003cbr\u003e\n      “name”: “Do Bump Springs Require Special Mounting Hardware?”,\u003cbr\u003e\n      “acceptedAnswer”: {\u003cbr\u003e\n        “@type”: “Answer”,\u003cbr\u003e\n        “text”: “Bump springs typically require mounting hardware, such as bump cups, to support and position them on the shock shaft. Landrum offers Bump Cups compatible with its bump springs and various shock shaft diameters.”\u003cbr\u003e\n      }\u003cbr\u003e\n    },\u003cbr\u003e\n    {\u003cbr\u003e\n      “@type”: “Question”,\u003cbr\u003e\n      “name”: “Are Bump Stop Springs Linear or Progressive?”,\u003cbr\u003e\n      “acceptedAnswer”: {\u003cbr\u003e\n        “@type”: “Answer”,\u003cbr\u003e\n        “text”: “Landrum Bump Stop Springs are designed to provide a linear spring rate through their working range. This means the additional force required for each inch of compression remains relatively consistent.”\u003cbr\u003e\n      }\u003cbr\u003e\n    }\u003cbr\u003e\n  ]\u003cbr\u003e\n}\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Landrum Springs\u003c\/li\u003e\n\u003cli\u003ePart number: ST1100\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSold by MH Race Supply. Free ground shipping on orders of $250 or more.\u003c\/p\u003e","brand":"Landrum Springs","offers":[{"title":"Default Title","offer_id":68143968125207,"sku":"LANST1100","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1036\/0789\/4295\/files\/BU0A9332-Edit-scaled.jpg?v=1793286821","url":"https:\/\/mhracesupply.co\/products\/landrum-springs-bump-stop-spring-1100lb-st1100-lanst1100","provider":"MH Race Supply","version":"1.0","type":"link"}