Coilover Springs

Coilover springs are high-performance, aftermarket suspension springs primarily used in Motorsports and Motor Racing. Hyperco’s coilover springs, also known as Hypercoils™, offer a wide range of free lengths and rates which provide the suspension designer latitude in creating a motion ratio for the suspension system that will permit an optimized damper or spring assembly to control a wide range of wheel travel. Shop standard Hyperco coilover springs below, or browse one of our other categories.

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Standard Coilover Spring Inventory

Our coilover springs are used in motorsports and racing and provide more usable deflection at a lower weight. Shop online for rapid shipping on your spring. Most online orders ship within 24 business hours. Or, view other categories below.

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Key Benefits of Hypercoils OBD/UHT Coilover Springs

More usable deflection
Less weight than standard suspension springs
2% rate linearity tolerance from 20% to 60% of deflection
4% rate linearity tolerance from 61% to 80% of deflection
More resistant to bowing than competitor’s springs
Designed to fit all standard hardware
Maintain free length and rate throughout a near-infinite operational life

Hypercoils, or Coilover Suspension Springs, Come in Two Design Styles

Optimum Body Diameter (OBD) Coilover Springs

Optimum Body Diameter is the standard spring design for Hyperco coil-over springs. Featuring a unique design concept that adjusts the body diameter of the spring relative to the end coils, an OBD spring enables Hyperco to take full advantage of our ultra-high tensile spring materials by optimizing the applied stress by adjusting the spring’s body diameter.

Ultra High Travel (UHT) Coilover Springs

Our Ultra High Travel springs are designed specifically for light rate / high travel coil-over applications, such as dirt and pavement racing. The UHT design meets the requirements of soft spring and big bar set-ups, and remains consistent in free length and installed height. The Ultra High Travel design features a larger “body bulge” over Hyperco’s standard OBD design, which allows for additional deflection, rate linearity, and resistance to bowing

Coilover Spring Products

2.25-inch ID A-Series Coil-Over Springs

BASIC SPECIFICATIONS

Free length range: 4” to 9”
Spring rates: 150#/in to 3800#/in
Material: High tensile chrome silicone
Finish: Hyperco dark blue powder coat
Spring Design(s): Optimum Body Diameter (OBD)

Note: Some 4″ and 5″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.

APPLICATIONS

Motorsports: Circle Track and Sports Car Racing*
Street Performance: Lighter weight sports cars where handling is important
Off-Road: Motorcycles, Quads, Dune Buggies, etc.

2.5-inch ID B-Series Coilover Spring

BASIC SPECIFICATIONS

Free length range: 4” to 16”
Spring rates: 85#/in to 1300#/in
Material: High tensile chrome silicone
Finish: Hyperco dark blue powder coat
Spring Design(s): Optimum Body Diameter (OBD), Ultra High Travel (UHT), Dual Rate UHT

Note: Some 4″ and 6″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.

APPLICATIONS

Motorsports: Circle Track and Sports Car Racing*
Street Performance: Lighter weight sports cars where handling is important
Off-Road: Motorcycles, Quads, Dune Buggies, etc.

*- The most popular spring size used in motorsports applications

2-inch ID C-Series Coil-Over Springs

BASIC SPECIFICATIONS

Free length range: 4” to 6”
Spring rates: 50#/in to 600#/in
Material: High tensile chrome silicone
Finish: Hyperco dark blue powder coat
Spring Design(s): Optimum Body Diameter (OBD)

APPLICATIONS

Motorsports: Circle Track and Sports Car Racing*
Street Performance: Lighter weight sports cars where handling is important
Off-Road: Motorcycles, Quads, Dune Buggies, etc.

1.875-inch ID D-Series Coil-Over Springs

BASIC SPECIFICATIONS

Free length range: 8” to 12”
Spring rates: 250#/in to 3600#/in
Material: High tensile chrome silicone
Finish: Hyperco dark blue powder coat
Spring Design(s): Optimum Body Diameter (OBD)

APPLICATIONS

Motorsports: Circle Track Racing (Legend Cars, Micro-Sprints, Midgets)
Off-Road: Motorcycles, Quads, Dune Buggies, etc.

3-inch ID E-Series Coil-Over Springs

BASIC SPECIFICATIONS

Free length range: 6” to 18”
Spring rates: 80#/in to 800#/in
Material: High tensile chrome silicone
Finish: Hyperco dark blue powder coat
Spring Design(s): Optimum Body Diameter (OBD), Ultra High Travel (UHT)
Note: 6″ free lengths use a more traditional spring design as there are not enough active coils to allow an OBD design.

APPLICATIONS

Motorsports: Circle Track Racing (Super Modified Pavement, Dirt Short Track)
Off-Road & Off-Road Racing: Side x Side and UTV where spring travel and resistance to bowing is important