Price includes 2 x Spring Rate Adjusters.
Each Spring rate adjuster stiffens the spring it is wound into by 10%
True Spring Rate Adjusters are different from preload adjusters. Instead of adjusting the preload (which you can still do separately) SRA's adjust the true spring rate of your springs. So now you don't need to take a range of springs to the track and can make 10% incremental changes to spring rates in just a few minutes.
(If you want to use these with forks not fitted with our Scalpel Vavle Kits you will also need a spring base - please contact us for more information)