SPHERE 3.0 WP 48 XACT Air Enduro Hydraulic Cartridge 2021-2023 Dal Soggio EN

The Dal Soggio 1P.SPH.XACT2321EN3.0 SPHERE 3.0 is a complete sealed and pressurized hydraulic cartridge developed for WP 48 XACT front forks from 2021 to 2023 used in an Enduro-from-MX-fork configuration.

Dal Soggio officially associates this version with KTM and Husqvarna and distinguishes it from the dedicated SPHERE 3.0 XACT MX cartridge.

SPHERE 3.0 represents the latest evolution of Dal Soggio’s hydraulic cartridge architecture, developed to increase fork sensitivity, hydraulic precision, linearity, and rider feedback.

A key development is the redesigned bladder, which is thinner and stronger than the previous generation. This design is intended to improve sensitivity while also allowing greater precision during hydraulic bleeding.

The compression system uses a redesigned base valve with independent High-Speed Compression and Low-Speed Compression adjustment, providing greater control over suspension behavior across different fork velocities and terrain conditions.

SPHERE 3.0 also increases the compression piston diameter from the previous 28 mm to 36 mm. According to Dal Soggio, this larger piston improves the linearity of the complete front suspension response.

The cartridge incorporates Direct Flow Technology, allowing oil to reach the piston directly rather than travelling through Z-shaped internal passages. This creates a more direct hydraulic path and reduces stress within the cartridge.

The result is a complete internal cartridge upgrade designed for riders and suspension tuners who want to use the WP XACT platform in demanding Enduro applications.

Key Features

• Developed specifically for WP 48 XACT 2021-2023 front forks configured for Enduro use from the MX fork platform
• New thinner and stronger bladder improves cartridge sensitivity and hydraulic bleeding precision
• Independent High-Speed and Low-Speed Compression adjustments provide greater damping setup control
• 36 mm compression piston replaces the previous 28 mm design for improved suspension linearity
• Direct Flow Technology feeds oil directly to the piston without Z-shaped passages, reducing hydraulic stress

Technical Specifications

Specification	Details
Manufacturer	Dal Soggio Race
Part Number / SKU	1P.SPH.XACT2321EN3.0
Product Family	SPHERE 3.0
Product Type	Sealed and Pressurized Hydraulic Cartridge
Fork Platform	WP 48 XACT
Configuration	Enduro from MX fork
Primary Brands	KTM / Husqvarna
Compatibility Period	2021-2023
Suspension Position	Front
Compression Piston Diameter	36 mm
Previous SPHERE Piston Diameter	28 mm
Compression Adjustment	Independent High-Speed / Low-Speed
Pressure Compensation	Bladder system
Oil-Flow Architecture	Direct Flow Technology
Installation Type	Complete internal hydraulic cartridge
Professional Installation	Recommended

Application & Compatibility

The 1P.SPH.XACT2321EN3.0 is officially specified by Dal Soggio for:

• WP 48 XACT
• KTM / Husqvarna
• Enduro use from the MX fork platform
• 2021-2023

This distinction is important because the product is not identified simply as a standard KTM/Husqvarna Enduro-fork cartridge.

It is specifically associated with the WP XACT MX-derived fork platform configured for Enduro use.

This version should not be confused with:

• 1P.SPH.XACT2125MX3.0 – WP 48 XACT MX SPHERE 3.0
• 1P.SPH.XACT-CCEN3.0 – later WP 48 XACT Closed Cartridge Enduro SPHERE 3.0

The exact WP XACT fork configuration should therefore be verified before ordering or installation.

SPHERE 3.0 Bladder System

SPHERE is a sealed and pressurized hydraulic cartridge using a bladder as part of its internal pressure-management system.

For the 3.0 generation, Dal Soggio introduced a thinner and stronger bladder.

The redesigned component is intended to improve:

• cartridge sensitivity;
• hydraulic response;
• bleeding precision;
• consistency of internal pressure management.

The bladder works together with the sealed cartridge architecture to compensate for changes in oil volume during suspension movement.

Independent High- and Low-Speed Compression

SPHERE 3.0 introduces a redesigned compression base valve with separate adjustment of:

• High-Speed Compression
• Low-Speed Compression

These terms refer to the speed of suspension movement rather than motorcycle speed.

Low-speed compression adjustment primarily affects slower fork movements associated with chassis load transfer and braking, while high-speed compression becomes increasingly relevant during rapid fork movements generated by sharper terrain impacts.

Independent control allows the suspension setup to be adapted more precisely to terrain, rider preference, and riding discipline.

36 mm Compression Piston

The SPHERE 3.0 compression piston has been increased from 28 mm to 36 mm.

Dal Soggio developed this larger working area to improve the linearity of the complete front suspension response.

The 36 mm piston operates together with the redesigned base valve and Direct Flow architecture as part of the complete SPHERE 3.0 hydraulic system.

Direct Flow Technology

SPHERE 3.0 uses Dal Soggio’s Direct Flow Technology.

With this design, suspension oil reaches the damping piston directly rather than being routed through Z-shaped internal passages.

The system is designed to:

• provide a more direct hydraulic flow path;
• reduce internal cartridge stress;
• improve damping consistency;
• increase precision of suspension response.

Enduro from MX Fork Configuration

Dal Soggio classifies this version as “Enduro from MX fork.”

This means the cartridge is specifically developed around the WP XACT MX-derived fork architecture when used or prepared for Enduro applications.

It should therefore not automatically be considered interchangeable with standard WP Xplor or later WP XACT Closed Cartridge Enduro forks.

Correct identification of the original fork platform is essential before installation.

Dedicated Hydraulic Setting

Dal Soggio publishes a dedicated technical sheet for the WP 48 XACT EN cartridge configuration, including specific compression and rebound shim stacks.

This confirms that the XACT Enduro version uses a dedicated hydraulic calibration rather than simply sharing the same internal setting as the MX version.

Final setup may still require adjustment according to rider weight, spring rate, terrain, riding level, and personal preference.

Installation Note

Installation requires complete removal and replacement of the relevant original fork internals with the SPHERE 3.0 cartridge system.

Correct assembly, cartridge bleeding, spring setup, oil level, and damping adjustment are essential for proper suspension performance.

Because this version is specifically intended for an MX-derived WP XACT fork configured for Enduro, identification of the correct fork before installation is particularly important.

Professional installation and final setup by a qualified suspension technician or Dal Soggio specialist are recommended.