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AER Leaf Spring Midvalve Kit w/Piston & Shims


 Product Description

For proper install, valving experience, understanding the role of each component, & measurement of parts (shims) are required.

If you are not experienced or confident in your knowledge, we recommend a professional tuner do the install.

Parts includes:

KYB mid-valve check valve

Mechanical O-ring

Midvalve post

WP AER mid-valve piston

Preassembled mid-valve baseline shims stack

Additional shims for re-configuring baseline

 Product Reviews

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  1. AER mid valve kit 5 Star Review

    Posted by on Jun 4th 2019

    I'm an older rider who rides techinical single track in Northern Arizona. I set my shim stacks up for enduro type riding. The forks work amazingly well. The only thing I had to change was the compression and rebound settings. Instead of reccomendated 12 clicks on each, I went to 10 clicks on each with good results.

  2. Best buck fifty you can spend on an off-road AER fork. 5 Star Review

    Posted by on Apr 28th 2018

    Installation is simple as long as you're semi-familiar with suspension valving. I used the MX-plush recommended setting for my TX300 hare scramble bike assuming my larger than average bust would need a little extra dampening. This setup is way more consistent then the stock setup and more compliant then my Factory Connection valving. The forks are a dream on western Washington roots and rocks yet hold up in deep sand whoops. I might try a little stiffer face shim to help with the MX track but so far I am very pleased with the performance gains.