Krooztune
Flow Kit WP35 Fork
WP35 Flow Kit
Transform the OEM cartridge into a true race-ready suspension system.
The Krooztune WP35 Flow Kit is a complete bolt-in damping upgrade for the OEM WP35 fork cartridge fitted to KTM, Husqvarna and GASGAS 50cc and 65cc models.
Rather than modifying or re-shimming standard components, the Flow Kit replaces the complete compression and mid-valve assemblies with fully developed Krooztune components, professionally assembled and ready to install.
Every kit includes a new compression piston, race-developed shim stack and our billet compression base featuring an external compression clicker, allowing riders to fine tune compression damping—something the OEM fork simply doesn't offer.
50cc kits come with Travel extension to achieve 20mm more travel. This can only be done to bikes that are set to full height ( not lowered ) 20mm more suspension action!
A Better Flow System
The standard WP35 cartridge uses a fixed base bolt with no external compression adjustment, limiting oil flow through the compression circuit.
The Krooztune Flow Kit replaces this with our purpose-designed billet compression base featuring an integrated compression adjuster. More importantly, the redesigned oil circuit introduces a controlled free-bleed system, allowing the fork to move much more freely over small bumps while maintaining excellent damping control throughout the stroke.
The result is dramatically improved comfort, increased front-wheel traction and a much more compliant fork action without sacrificing support when the pace increases.
Complete Mid-Valve Upgrade
The Flow Kit also includes our complete bolt-in mid-valve assembly.
The OEM mid-post is replaced with a fully assembled Krooztune mid-valve and rebound assembly, already shimmed using our proven race settings. This provides the correct balance of compression support and rebound damping specifically developed for modern 50cc and 65cc racing.
Simply install the assembly, set your clickers and ride—no re-valving, no guesswork and no shim stack building required.
Rider-Tuned Valving Options
Every WP35 Flow Kit is supplied with our proven setup spec sheet, developed through extensive race testing on KTM, Husqvarna and GASGAS 50cc and 65cc models.
Three compression valving specifications are included, allowing the fork to be tailored to the rider's weight, ability and riding style.
- Comfort Spec – Maximum comfort and traction for lighter riders and developing racers.
- Race Spec – Our recommended all-round setting, providing the ideal balance of plushness, support and control.
- Pro Spec – Increased damping support for heavier, faster and more aggressive riders.
The kit also includes two rebound tuning specifications, matched to the recommended spring rates, ensuring the fork remains balanced throughout the stroke.
All optional tuning shims required to achieve these settings are supplied with the kit, allowing future changes without purchasing additional components.
Kit Includes
- Billet compression base with external compression clicker
- Compression piston with race-developed shim stack
- Complete bolt-in mid-valve and rebound assembly
- All required hardware and sealing components
- Optional tuning shims
- Comprehensive setup and tuning guide
Features
- Complete bolt-in upgrade for the OEM WP35 cartridge
- New compression piston with race-developed shim stack
- Billet compression base with external compression clicker
- Controlled free-bleed circuit for dramatically improved small-bump compliance
- Complete bolt-in mid-valve and rebound assembly
- Professionally assembled and pre-valved—no shimming required
- Retains standard rebound clicker adjustment
- Easy installation using the OEM cartridge
- Three compression specifications and two rebound settings included
- Suitable for KTM, Husqvarna and GASGAS 50cc and 65cc WP35 forks
Designed to work seamlessly with the WP35 ATS Spring Kit and Shock Flow Kit, the WP35 Flow Kit forms part of the complete Krooztune Flow Range, delivering balanced suspension performance from front to rear.
Whether you're setting up a first race bike or chasing national-level results, the WP35 Flow Kit transforms the standard fork into a highly adjustable, race-developed suspension system, delivering greater comfort, improved traction, increased adjustability and the confidence to ride faster on every lap.
Product information
PRODUCT FEATURES
Get Your Perfect Setup
Not sure which setting, kit level or upgrade is right for your bike?
We’ll match your suspension to your weight, speed and riding style using real data and years of race-proven experience.
Submit your details and we’ll guide you to the ideal setup.
F.A.Q.
They appreciate cut and details, things that aren't so obvious.
Do you offer setup advice with this product?
Absolutely.
Every purchase includes access to our Setup Form, where we provide personalised guidance on your ideal settings, spring rates, and upgrade choices.
Can I purchase items with another currency?
Yes, you may select a currency based on your personal preference. When you select your country in the country selector and set to your country’s version of the website, you will see prices listed in the regional currency.
Can I make changes to my order after it’s been placed?
Email Info@krooztune.com asap and quote your order number. Our emails are checked daily before shipping out any orders
What if I have issues or need support after buying?
We’re here to help.
You can reach us anytime for setup adjustments, technical questions or installation support. Krooztune products are backed by real riders and real workshop support.
Do I need to pay extra tariffs or taxes when ordering from the USA?
No — Krooztune covers all USA tariffs and import taxes.
The price you see at checkout is final, with no hidden fees or surprise charges upon delivery.