Dal Soggio SPHERE 3.0 WP 48 4CS Enduro Cartridge Kit

The Dal Soggio SPHERE 3.0 WP 48 4CS Enduro Cartridge Kit is a high-performance suspension upgrade developed specifically for WP 48 4CS Enduro front forks fitted to compatible KTM and Husqvarna motorcycles.

Dal Soggio officially identifies SKU 1P.SPH.4CSEN3.0 as the Sphere 4CS EN 3.0 version, designed for Enduro applications within the WP 4CS fork family.

SPHERE 3.0 is the latest evolution of Dal Soggio Race’s sealed and pressurized hydraulic cartridge system, developed through extensive dyno and track testing to improve fork sensitivity, precision, hydraulic control, and rider feedback.

A key development is the redesigned bladder, which features a thinner yet stronger construction. This improves cartridge sensitivity and allows greater precision during hydraulic bleeding.

The redesigned compression base valve features separate High-Speed Compression and Low-Speed Compression settings, allowing each damping range to be adjusted independently according to terrain, riding style, and suspension setup.

Another major update is the new 36 mm compression piston, replacing the previous 28 mm design. The larger piston is intended to improve the linearity of the front fork’s hydraulic response throughout the suspension stroke.

SPHERE 3.0 also incorporates Dal Soggio’s Direct Flow Technology. The compression piston receives oil directly rather than through the previous Z-shaped passages, helping reduce internal hydraulic restriction and cartridge stress.

In Enduro use, these characteristics are intended to provide improved sensitivity over roots, rocks, braking bumps, ruts, and technical terrain while maintaining hydraulic support when the fork is subjected to harder impacts.

Dal Soggio specifies CUBE Fork Oil 5W for use inside the SPHERE hydraulic cartridge system.

Key Features

• Sealed and pressurized SPHERE 3.0 hydraulic cartridge developed for WP 48 4CS Enduro forks
• New thinner and stronger bladder improves cartridge sensitivity and hydraulic bleeding precision
• Separate High-Speed and Low-Speed Compression settings allow independent compression damping adjustment
• New 36 mm compression piston improves hydraulic linearity compared with the previous 28 mm design
• Direct Flow Technology feeds oil directly to the compression piston to reduce internal flow restriction and cartridge stress

Technical Specifications

Specification	Details
Manufacturer	Dal Soggio Race
Part Number / SKU	1P.SPH.4CSEN3.0
Product Name	SPHERE 3.0 WP 48 4CS EN
Product Type	Hydraulic Fork Cartridge Kit
Series	SPHERE 3.0
Fork Platform	WP 48 4CS
Discipline	Enduro
Motorcycle Brands	KTM / Husqvarna
Dal Soggio Compatibility Range	2013-2016
Cartridge Type	Sealed and Pressurized Hydraulic Cartridge
Compression Piston Diameter	36 mm
Previous Piston Diameter	28 mm
Compression Adjustment	Separate High-Speed and Low-Speed Compression
Bladder	New thinner and stronger design
Hydraulic Technology	Direct Flow Technology
Specified Oil	Dal Soggio CUBE Fork Oil 5W
Installation Type	Internal Fork Cartridge Replacement / Upgrade
Professional Installation	Recommended

Application & Compatibility

The 1P.SPH.4CSEN3.0 SPHERE 3.0 is designed for compatible WP 48 4CS Enduro front forks.

Dal Soggio officially classifies this version as:

WP 4CS – KTM / Husqvarna – Enduro – 2013-2016.

This version should not be confused with SKU 1P.SPH.4CSCR3.0, which is the dedicated motocross / Cross version for the WP 4CS fork family.

Because WP 4CS equipment varied by motorcycle model, market, and production year, final compatibility should always be verified against the actual fork installed on the motorcycle.

Hydraulic System & Performance

SPHERE 3.0 replaces the original internal damping arrangement with a sealed and pressurized hydraulic cartridge engineered to provide greater suspension precision and sensitivity.

The new bladder assists hydraulic pressure management and cartridge responsiveness, while the separate high-speed and low-speed compression adjustments provide a wider tuning range.

The 36 mm compression piston increases the working diameter compared with the previous 28 mm configuration and contributes to a more linear hydraulic response.

With Direct Flow Technology, oil reaches the compression piston directly, avoiding the previous Z-type internal passages and reducing unnecessary internal flow restrictions.

Enduro Application

Enduro riding demands both sensitivity and support from the front suspension.

The fork must remain compliant over roots, rocks, ruts, loose terrain, and braking bumps while still offering sufficient hydraulic control during faster impacts and aggressive riding.

The independent compression circuits allow a suspension technician to work separately on slower chassis movements and faster suspension inputs.

Low-speed compression adjustment can influence chassis support, braking behavior, and rider-induced movements, while high-speed compression adjustment can be used to manage faster impacts generated by square edges, rocks, roots, and harder terrain features.

Oil & Service

Dal Soggio specifies CUBE Fork Oil 5W for the SPHERE hydraulic cartridge.

Correct cartridge bleeding, oil quantity, spring setup, damping adjustment, and overall chassis balance are essential for proper suspension performance.

Professional installation and setup by a qualified off-road suspension specialist are recommended.

Installation Note

Before installation, confirm:

• correct WP 48 4CS fork platform;
• Enduro configuration;
• compatible KTM or Husqvarna application;
• correct Dal Soggio SKU 1P.SPH.4CSEN3.0.

The SPHERE cartridge should be installed and tuned according to rider weight, skill level, riding style, terrain, and motorcycle configuration.