AE Fork Compression Control — KYB Compression Adjuster

FIRST PRODUCTION RUN RECEIVED | LIMITED AVAILABILITY | FITMENT VERIFICATION REQUIRED

AE Fork Compression Control

More useful compression tuning range, without repeatedly opening your forks to change internal shims. AE Fork Compression Control uses our Mid-Valve Travel Control (MVTC) design to externally adjust the permitted movement of the midvalve leaf-spring arrangement while retaining a fixed bleed path. Designed and tested by Adrenaline Engineering.

Choose one fork or both

• One adjuster — $399: approximately 5× the stock combined-fork compression adjustment range in AE's tested configuration.
• Two adjusters — $699 per pair: approximately 10× the stock combined-fork adjustment range in AE's tested configuration.

The 10× comparison reflects a tested adjustment span of approximately 35% versus 3.5% stock. Actual results vary with the motorcycle, fork assembly and internal valving. These figures describe damping adjustment span, not suspension travel, speed or a guaranteed performance improvement.

What's included

• One physical Compression Control adjuster per unit ordered.
• Physical rider-specific shims and recommended setup for the fork leg receiving each adjuster, selected after AE reviews your bike, riding level, terrain and suspension goals.
• Guidance for establishing an appropriate starting point, including recommended base-valve, midvalve and rebound settings where applicable.

Optional other-fork shim package — $100: If you install just one adjuster, you can leave the opposite fork's valving unchanged. If you'd prefer AE to supply additional physical shims and a coordinated recommendation for that non-adjuster fork, that package is available for an additional $100. It is not required for the adjuster to work.

Installation labor, oil, seals, springs, unrelated replacement parts, shipping and additional revalving work are not included in the adjuster price. AE will quote services separately before performing them.

Important: compression and rebound adjustment

Installing an AE Compression Control adjuster replaces the original external rebound adjuster on that fork leg. With one AE adjuster, the other fork leg retains its OEM external rebound adjustment where fitted. With two AE adjusters, both external rebound adjusters are replaced; rebound is then established through the internal valving and is not externally adjustable. We recommend discussing your rebound setup with AE before choosing a pair.

Will it work with my existing valving?

Often, yes. If you already like your setup, tell us your current settings. Our testing database and in-house wheel-force analysis, informed by measured suspension dyno curves, help us recommend a compatible starting configuration. The two fork legs contribute together to overall damping, so you do not necessarily need to revalve the untouched fork leg when fitting a single adjuster. AE can also provide suspension dyno verification where appropriate.

Compatibility: Current designs are intended for confirmed KYB fork applications using OEM pistons. Not every KYB fork is automatically compatible. Aftermarket pistons have not been verified and may require additional testing; contact us before purchasing if your forks are modified.

How to order from the first production run

We have received 25 KYB units. Fitment verification is required before fulfillment. After ordering, Adrenaline Engineering will contact you to confirm motorcycle compatibility and determine the appropriate setup. Orders with incompatible applications may require cancellation and refund.

Installation

Professional installation is recommended for this first release. Local riders can bring their forks to our Belle Plaine, Minnesota shop; remote customers may ship their forks to AE or request shipment to a qualified suspension technician. Installation and additional revalving are separately quoted. Installation guidance for qualified technicians is being developed.

Learn more about the technology and configurations or contact Adrenaline Engineering for fitment and ordering.