Showa 49mm Leaf Style Midvalve Post

All-New Showa 49mm Midvalve Post Assembly

Showa 49mm Midvalve Post Assembly, designed to deliver industry-leading hold-up and ride feel for faster 'A' level riders. This innovative kit offers a transformative upgrade to your forks, flipping the internal damping balance for unmatched control, comfort, and performance on big hits at high speeds best matched with riders pushing these new generation bikes at high speed. 

Kit Fits :

All Showa 49mm Equiped bikes found in current model bikes : 

Honda CRF250/450 2019- 

Kawasaki KX250 2024 - 

Kawasaki KX450 2019- 

Suzuki RMZ450 - 2018- 

Inclusions:

• 2 x Precision-Machined Midvalve Posts
• 2 x Custom Machined Surface Flat Washers
• 2 x Secure Locking Nuts

Available Options:

1. Posts and Washer/Nut Only - Ideal for tuners with their own custom shim stack preferences.
2. Compression Shim Setting Included - Pre-built compression stack for easy plug-and-play installation and using oem rebound or own custom preference. Includes 2 setting options Fast B and A Pro
3. Compression & Rebound Shim Stack Included - Full package for the ultimate ready-to-ride experience, rebound settings matched to your fork’s spring rate. Includes both Fast B and A Pro setting.  Rebound options for all common spring rate installed.

Why Choose the Showa 49mm Midvalve Kit?

• Enhanced Fork Hold-Up: Engineered for faster, high-level riders, this kit allows for a softer main stack setting offering much improved in hand feel while maintaining firm control over big hits at high speeds.
• Improved Rider Comfort: Feel the difference with a plusher, more controlled ride that reduces harshness while maintaining superior hold-up.
• Custom-Tuned Balance: Our custom rebound stack, matched to your spring rates, delivers a balanced, competition-ready setup comparable to the complete packages we offer in our workshop.  No more bounce back or high speed spikes.

How It Works The OEM Showa fork design typically relies on a light mid valve, which results in a dive-prone front end, harshness, and limited hold-up. Our Showa 49mm Midvalve Post Assembly flips that internal damping balance, shifting the load-bearing responsibility from the top compression valve to the midvalve. This "leaf-style" valving setup gives riders the confidence to push harder, ride faster, and hit big obstacles with unwavering control. The magic is in the Leaf or trampoline base stack setup that upon larger hits , it will further open and offer less harshness on these high spikes.    

Not for Beginners This aggressive leaf-style setup is designed for faster riders who demand uncompromising hold-up and speed. Beginner and slower riders may find this system too firm for their needs. For those ready to level up, this kit delivers race-proven results and a feel comparable to other premium suspension systems.  Feels better when pushed faster!

Unleash Your Fork’s Potential Transform your ride with a kit that’s purpose-built for speed, control, and confidence. Whether you’re a tuner with a unique setup in mind or you want the ease of a pre-built, race-ready stack, the Showa 49mm Midvalve Post Assembly puts you in control. Take the guesswork out of your suspension upgrade and ride with the confidence that comes from a fork setup worthy of Pro level competition.