WP 4CS Fork

If you are looking for a product which will boost the function of your WP 4CS front forks, the RAY kit from Dal Soggio Race Part Division is perfect for you! The RAY kit enhances the way that your WP 4CS forks work, rebounding the upper part of each leg, doubling the shim oil flow and isolating compression in the lower part. The kit is perfect for those riders who like to customize their suspensions without sacrificing the performance of their WP 4CS forks. So, do you wish to tune your current front forks? Quickly take a look at the products and kits that the Dal Soggio Race Part Division has to offer! 

Moved by a passion for motorcycles, owner Gianni Dal Soggio has created the new “Race Part Division”. Dal Soggio Race Part Division has over 70 years of experience and is one of the worlds’ market leaders within high-tech racing products. By using the newest techniques we have been able to create a RAY kit that will enhance the sensitivity and damping accuracy of your WP 4CS front forks. Our kit is suited for both motocross, enduro and off-road disciplines. 


At the Dal Soggio Race Part Division we strive to create dirt bike parts which not only enhance your motorcycle, but also give you the best experience as possible when riding your bike. All of our kits and products are perfect for aspirant and professional riders. We are proud to present a RAY kit that will improve the reliability of your WP 4CS forks and also enhance the overall safety of your bike. If you are still doubting whether you should choose one of the RAY kits from Dal Soggio Race Part Division, we have listed a few advantages for you:

  • Easy installation – The SPHERE from the Dal Soggio Race RAY kit is really easy to install. The RAY kit contains all the internal components that you need to complete the conversion. The only thing that you need is oil. We advise to use the Dal Soggio Cube oil—which obtains the perfect formula to balance the hydraulic system of the front forks of your bike
  • Adjustable valve settings – The valve settings from the SPHERE are normally set for an average rider, but they are completely adjustable. So, whether you’re a professional, average or aspirant rider, you can adjust the valve settings so that the SPHERE is perfect for you
  • Modifiable shims – Just like the valve settings, the shim stacks can also be modified to suit the needs of any rider.

In short, when installed correctly, the RAY kit from Dal Soggio allows you to eliminate hardness on small, square-edge braking and acceleration bumps. The improved WP 4CS forks also allow you to stay higher in the stroke to increase bottoming resistances on big hits. 


Are you interested into becoming a dealer of the Dal Soggio Race Part Division products? Or would you like to sell our RAY kits in your shop? Please feel free to contact us! We would love to talk to you about the advantages of becoming a dealer. You can contact us directly by using the our online forms. Choose the one that states “Become a Dealer”. It is also possible to give us a call via +39 0445 314 051 or via mail: info@dalsoggiorace.com.  


As an Italian company we have the privilege of living in a country that in many ways is ideal for sports like motocross. The countryside as our canvas we have every room to develop and produce the finest dirt bike parts.

And not without success. Our riders using our suspension have already had many victories and successes both nationally and internationally.

We want everyone to achieve success in motocross thanks to our suspension. But more importantly we want people to enjoy the sport as much as possible.

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I want only the best for my customers and Dal Soggio’s products are a guarantee.


My Husqvarna now is at the top! Thank Dal Soggio!


Very impressive products! I’ve bought a Sphere AER and it’s sure the best solution I may have taken.

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