What is a linear spring rate?

A linear spring rate means that for every millimeter the spring is compressed, the force it exerts increases by a consistent amount. This provides predictable suspension behavior under load.

What does the 51mm ID refer to?

ID stands for Inner Diameter. The 51mm measurement indicates the diameter of the coilover shock body that this spring is designed to fit onto.

What is the benefit of a 100 N/mm spring rate?

A 100 N/mm spring rate is significantly stiffer than most factory springs. This can lead to improved handling, reduced body roll, and a more responsive feel during performance driving.

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Specifications

Brand: AST
Part #: AST-200-100-51

Moton Linear Racing springs 200mm length x100 N/mm Rate x 51mm ID-single

Name: Moton Linear Racing springs 200mm length x100 N/mm Rate x 51mm ID-single
Brand: AST
SKU: ast-moton-linear-racing-springs-200mm-length-x100-n-mm-rate-x-51mm-id-single-t14-801681
Price: 103.36 USD
Availability: BackOrder

$103.36

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

These are Moton Linear Racing springs from AST.
The springs measure 200mm in length.
They have a spring rate of 100 N/mm.
The inner diameter is 51mm.
This is a single spring.

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About this part

Product Details

These Moton Linear Racing springs from AST are 200mm long with a spring rate of 100 N/mm and a 51mm inner diameter. This specific spring rate offers a firmer ride compared to stock, which can improve handling and reduce body roll during spirited driving or track use. The linear spring design means the force increases consistently as the spring is compressed, providing predictable suspension response.

Constructed for performance applications, these springs are built to withstand the rigors of racing and demanding road conditions. The 51mm inner diameter is a common size for many coilover systems, making them a versatile option for builders looking to tune their suspension. When installing, ensure you have the correct spring perch setup to match the 200mm length to maintain proper ride height and suspension travel.