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Est. 1957
AST

AST Linear Race Springs - 300mm Length x 40 N/mm Rate x 61mm ID - Single

$103.36

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AST Linear Race Springs - 300mm Length x 40 N/mm Rate x 61mm ID - Single

Key Features

  • Linear spring rate provides predictable suspension response.
  • 300mm length is a common size for performance coilovers.
  • 40 N/mm spring rate offers a firm but manageable ride for performance applications.
  • 61mm inner diameter fits many popular coilover shock bodies.
  • Well-built by AST for durability in demanding conditions.
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About this part

Product Details

When you're building a performance suspension setup for your track car or a serious street build, the right spring rate is crucial for handling. These AST Linear Race Springs are designed to give you precise control over your vehicle's ride and cornering characteristics. The linear rate means that as the spring compresses, the force it applies increases steadily, providing predictable feedback to the driver.

This particular spring measures 300mm in length with a 40 N/mm spring rate, which is equivalent to about 224 lbs/inch. The 61mm inner diameter is a common size for many performance coilover systems, making it a versatile option for custom builds or replacements. AST is known for well-built suspension components, and these springs are made to withstand the rigors of spirited driving and track use, helping to maintain consistent suspension geometry under load.

Specifications

Brand
AST
Manufacturer Part #
AST-300-40-61
UPC
astAST-300-40-61

Frequently Asked Questions

AST Linear Race Springs - 300mm Length x 40 N/mm Rate x 61mm ID - Single

$103.36