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Eibach 12 Inch Long Spring 375 Pounds For A 2.5 Inch Diameter Coil Over Shock

Eibach 12 Inch Long Spring 375 Pounds For A 2.5 Inch Diameter Coil Over Shock
    Country Of Origin: U.S.A.
    Quantity in Basket: None
    Part Number: eibachspring12003000375s
    Price: $114.50
    Sold As: 1 Eibach Shock Spring
    Mfg UPC: 1200.300.0375s


     
    Quantity:
     
    Eibach Springs fit Fox, King, Sway-A-Way Racerunner, or any other coil over shock body that is 2.5 inches in diameter. Eibach springs are USA made.

    Specifications:
    Extended Length: 12.00 inches / 305mm
    Inside Diameter: 3.00 inches / 76mm
    Spring Rate: 375 lbs/inch / 66 N/mm
    Collapsed Length: 4.49 Inches / 114 mm
    Travel: 7.51 Inches / 191 mm
    Load at Collapsed Length: 2,815 lbs / 12,522 N
    Weight: 5.58 lbs / 2.53 kg

    How Eibach Determins Their Spring Rate

    All Eibach motorsport springs are tested between 20% and 70% of the spring's total travel. This is especially useful information if you already have springs on your vehicle and don't like the ride height or you need to over preload your springs to gain ride height.

    For Example A Standard Spring: 1200.250.0500 (12" Free Length, 2.50" inside diameter, 500lb/in)

    STEP 1: TRAVEL BEFORE COIL BIND How Eibach Spring Force Is Calculated
    The example spring travel is 6.25" This number represents the total available travel from free height to coil bind.
    STEP 2: TEST RANGE
    Eibach calculates the first test point by taking 20% of 6.25" which equals 1.25"

    Eibach calculates the second test point by taking 70% of 6.25" which equals 4.375"

    The actual travel between these two points is 3.125" and this is where Eibach determines their spring rate.

    4.375 - 1.250 = 3.125 inches
    STEP 3: SPRING RATE TEST How Eibach Spring Force Is Calculated
    Preloading the spring down 20% or 1.25" would equal a 500lbs force measurement.

    Compressing the spring down 70% or 4.375" and the force measurement would equal 1565lbs.

    3.125" of travel multiplied by 500 lb/in equals 1565 lbs of force.

    3.125 x 500 = 1565
    TOLERANCE:
    With Eibach's precise spring rate tolerance of +/- 2% (500 x 2% = 10 lbs) the spring rate should fall between 490 and 510 lbs/in



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