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EXT Introduces New Super-Light Coil Springs 1

Citing weight-savings of 30 to 60+ grams over the competition, EXT's new springs will drop grams from your bike while maintaining performance.

EXT Introduces New Super-Light Coil Springs

First to introduce Superlight springs in 2015, EXT is now redefining Superlight meaning introducing a new material that will make for a new state-of-the-art in spring design regarding both lightness and quality. This new generation of Superlight Spring features a weight reduction, depending on spring stiffness values and travel, of up to 30% compared with the previous EXT superlight generation and other competitor products.


Defining New Standards

Developed using exotic materials mainly used in motorsport applications, that features a very high tensile strength and modulus coupled with a very dedicate design and specific production process, EXT Superlight V2 Springs are set to define a new standard in very low weight high performances springs.


Why Use Lighter Springs?

In modern MTB performance is key, and much of the research done in the last few years is oriented towards making high quality components while reducing weight. Every gram counts, that’s why we developed Ext Superlight V2 Springs, to assure you the same performance as your favorite coil springs without having to come to terms with weight.


Performance and Safety

Safety is one of the key values of EXT, our products are tested under extreme conditions to guarantee you the ability to ride at your full potential without worrying about failures. EXT Superlight V2 Springs are no different, while being lighter they aren’t by any means less solid and have been tested to give you the best performance and safety.


Materials and Features

The material used for Ext Superlight V2 Springs is refined in a way that leads to a higher tensile strength, which gives several advantages:

  • 100% crack detection proof
  • the feature of higher % of vanadium results in a very high dynamic possible stress
  • long life span
  • reduction of weight compared to the same spring made from “normal” spring steel (up to 30% of reduction, depending on spring characteristics)


Available Sizes


EXT Superlight V2 Springs are carefully calculated to the minimum length for the stroke required, this means that your spring will totally cover the shock stroke, but will also have a lighter weight. EXT Springs are developed for a long time use, thanks to improved mechanical characteristics and its material directly derived from motorsport. We offer a rate increase by 25lb to fine tune your MTB. EXT Superlight V2 Springs do not need any preload (maximum 2mm preload) allowing you the best feeling of coil shock. The use of springs with K over 600 require dedicated spring hardware/adapter.

For more information head to

View key specs, compare products, and rate the EXT Superlight V2 Springs in the Product Guide.

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