H&R Product Line SPRINGS | CUP KITS | COIL OVERS | SWAY BARS | TRAK+ WHEEL SPACERS | CAMBER ADJUSTMENT BOLTS
		OE Sport Springs		Sport Springs		Race Springs
Application		Average Everyday Driving		Great Street Driving		Hit the Track & Aggressive Street Use
Lowering		Low .25 - 1.0" Drop		Lower 1.25 - 1.75" Drop		Lowest 1.9" - 2.5" Drop
Handling		Close to stock but Better!		Very Sporty		Aggressive Street/Track
Ride		Just like Stock		15 - 20% Stiffer		25 - 40% Stiffer
Alignment		No Worries		Could use Triple C Camber Adjustment Bolts		Alignment Kit Recommended
Fitment Considerations		No Worries		Could use Triple C Camber Adjustment Bolts		May Require Performance Shocks

OE Sport Springs H&R OE Sport Springs lower your vehicle subtly, giving it a slightly more aggressive stance without radically changing its appearance. Designed to enhance front-to-rear balance and street handling performance, OE Sport Springs take the "wallow" out of the stock suspension, providing a more controlled feel and improved ride characteristics. All this while retaining the ride comfort you're accustomed to with added confidence. Sport Springs The most popular spring in H&R's line-up, Sport Springs will lower your vehicle an average of 1.5 - 2 inches (depending upon the make and model of your vehicle) for a lower center of gravity, improved handling and a more aggressive appearance. Sport springs feature more control than that of the OE Sport spring, but is still comfortable for daily use. Sport springs are an excellent choice for street and occasional track use. Race Springs For the discerning enthusiast that wants the ultimate in performance and an aggressive look, H&R Race Springs are the perfect solution. H&R Race Springs will lower your vehicle approximately 1.75-2.5 inches (depending on the make and model of your vehicle) and should be matched with high-quality, sport-tuned shock absorbers. Camber correction may be necessary.

Truck Raising Springs H&R produces a number of high quality truck raising spring kits. Featuring progressive rates and the same top-of-the-line engineering and performance of all H&R products, the H&R truck raising spring kits are among the best in the industry. 2.50" and 60mm I.D. Race Springs H&R standardized I.D. Race Springs are the leading choice of motorsports professionals world wide. H&R 2.50" I.D. Race Springs are wound from a special spring steel that has a higher tensile strength, providing clear performance to weight ratio advantages over competitive race springs. The special 54SiCr6 spring steel allows H&R 2.50" I.D. Race Springs to be on average 15% lighter and have 10% more travel for any given spring rate due to its stronger, more resilient nature. Main springs range from 6" to 16" (25.4 mm = 1 inch) in length and are available in a wide selection of spring rates. H&R also carries a complete line of 60mm I.D. main and tender springs. Main springs range from 100 mm to 300 mm in length and 30 N to 700 N (N/mm x 5.709 =pounds/inch) in spring rate. Tender springs vary in length from 40 mm to 130 mm, with numerous spring rates available

I.D. Race Spring Worksheet Here is a brief FAQ to determine the critical dimensions, and which spring is best for your application: There are three primary spring standards that are currently used for coilover kits. These are all based on the inside diameter of the spring. The 3 primary diameters used are 2.5", 2.25", and 60mm. H&R makes a wide variety of springs in 2.5" and 60mm diameters. This diameter is critical, and determining this should be the first step in what will work for you. Next is the spring rate. This is somewhat subjective, and will be based on several factors such as corner weights, shock valving, and spring motion ratio. Finally, there is the free length of the spring. This is the length of the spring with no load on it. There is usually a range that these will work on, depending on what the spring rate is, and how much adjustment you have. Generally, the longest spring that can be used to still provide adequate adjustment and clearance should be used. If you have any questions of exactly what you should be using, please email us at info@allsprings.com, and we will be happy to help you determine what is best for your needs.

Frequently used conversion factors: 1 in = 25.4 mm 1 Newton = 5.71 lbs 60mm = 2.36 in Rate (N/mm) = G d4/ ( 8 N D3) Where G = modulus of rigidity in N/mm2. This is a constant and equal to 78,600 for steel d = diameter of the wire used for the spring (mm) D = mean diameter of the spring, or spring diameter measured at the center of the coils (mm) N = number of active coils. This may be fractional depending on the spring design. A coil is considered active if it is not touching the mount.

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