SKU: LANST1100
MPN: ST1100
The Bump Stop Spring 1100lb (model ST1100) is a critical suspension component designed for vehicle builds where precision ride height control and maximum suspension travel are non-negotiable. Whether you're engineering a lifted truck, lowered sports car, or custom off-road platform, this bump stop spring compresses under extreme suspension extension to prevent metal-to-metal contact between the chassis and axle housing. This protective compression occurs at the very end of the suspension stroke, protecting expensive drivetrain components and preventing catastrophic frame damage during aggressive driving, cornering, or terrain transitions.
With a spring rate of 1100 pounds, this bump stop delivers the perfect balance between compliance and support for mid-to-heavy-duty applications. The compact design (2.7 × 2.2 × 3 inches) allows installation in tight suspension geometry without fouling brake lines or driveshafts, while the lightweight 0.41 lb construction minimizes unsprung weight—a critical factor in suspension tuning. Unlike rubber jounce bumpers that degrade under UV and ozone exposure, a properly engineered spring bump stop maintains consistent dampening characteristics across temperature extremes and high cycle counts, making it ideal for daily drivers and track vehicles alike.
Mechanics and suspension technicians specify the 1100lb bump stop spring for vehicles running lowering springs, air suspension systems, or extended-travel off-road setups where standard OEM bump stops prove inadequate. This component integrates seamlessly into custom suspension builds, coilover conversions, and lifted chassis applications. Proper installation requires correct mounting orientation and complementary spring rate selection; consult your suspension designer or chassis engineer to confirm the 1100lb rate matches your vehicle's gross vehicle weight rating and intended duty cycle. Investing in quality bump stop springs prevents expensive frame repairs and extends suspension component lifespan significantly.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
