Dal Soggio SPHERE 3.0 WP 48 AER Enduro Cartridge Kit

The Dal Soggio SPHERE 3.0 WP 48 AER Enduro Cartridge Kit is a high-performance suspension upgrade developed for WP 48 AER front forks used in an Enduro configuration derived from the MX fork platform.

Dal Soggio identifies this specific version under SKU 1P.SPH.WP48AEREN3.0 for compatible KTM and Husqvarna applications from 2015 to 2020, distinguishing it from the dedicated WP 48 AER MX version.

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, linearity, and rider feedback.

A major update is the redesigned bladder, featuring a thinner yet stronger internal structure. According to Dal Soggio, this makes the cartridge more sensitive 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 rider requirements, terrain, and suspension setup.

Another major development is the 36 mm compression piston, replacing the previous 28 mm design. The larger piston is intended to increase the linearity of the front fork’s hydraulic response throughout its working 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, reducing internal flow complexity and hydraulic stress within the cartridge.

For this particular version, the WP 48 AER platform is configured specifically toward Enduro riding, where sensitivity, traction, compliance over technical terrain, and predictable hydraulic support are especially important.

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

Key Features

• Sealed and pressurized SPHERE 3.0 hydraulic cartridge configured for Enduro use with the WP 48 AER MX-derived fork platform
• 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 configuration
• Direct Flow Technology feeds oil directly to the compression piston, reducing internal flow restriction and cartridge stress

Technical Specifications

Specification	Details
Manufacturer	Dal Soggio Race
Part Number / SKU	1P.SPH.WP48AEREN3.0
Product Name	SPHERE 3.0 WP 48 AER Enduro
Product Type	Hydraulic Fork Cartridge Kit
Series	SPHERE 3.0
Fork Platform	WP 48 AER
Configuration	Enduro from MX Fork
Discipline	Enduro
Motorcycle Brands	KTM / Husqvarna
Compatibility Years	2015-2020
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.WP48AEREN3.0 SPHERE 3.0 is designed around the WP 48 AER motocross fork platform, but with a configuration intended for Enduro use.

Dal Soggio officially identifies the application as:

KTM / Husqvarna – Enduro from MX fork – 2015-2020.

This distinction is important. The kit should not be confused with SKU 1P.SPH.WP48AERMX3.0, which is the dedicated motocross version for the same basic WP 48 AER fork family.

Compatibility is fundamentally determined by the WP 48 AER fork configuration, so the actual fork fitted to the motorcycle should always be checked before installation.

Hydraulic System & Performance

SPHERE 3.0 replaces the original internal damping arrangement with a sealed and pressurized hydraulic cartridge engineered to increase fork precision, sensitivity, and rider feedback.

Dal Soggio describes the sealed and pressurized SPHERE architecture as providing greater fork sensitivity and precision compared with the standard system.

The redesigned bladder assists hydraulic pressure management, while independent high-speed and low-speed compression circuits provide suspension technicians with greater tuning flexibility.

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

With Direct Flow Technology, oil reaches the compression piston more directly, avoiding the previous Z-type internal passages.

Enduro Application

This version is specifically intended to adapt the performance-oriented WP 48 AER MX fork platform to Enduro use.

Enduro riding places different demands on the front suspension compared with motocross. The fork must remain sensitive over roots, rocks, braking bumps, ruts, and low-grip terrain while still offering sufficient hydraulic support during harder impacts and aggressive riding.

The separated High-Speed and Low-Speed Compression adjustments allow the suspension setup to address these different operating conditions independently.

Low-speed compression tuning can influence chassis movement, braking support, and rider inputs, while high-speed compression adjustment can be used to manage faster suspension movements generated by rocks, roots, square edges, and harder impacts.

Oil & Service

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

Correct oil quantity, hydraulic bleeding, cartridge installation, spring setup, and damping adjustment are essential for proper operation.

Dal Soggio recommends installation and setup through qualified suspension specialists familiar with off-road suspension systems.

Installation Note

Professional installation is strongly recommended.

Before installation, confirm:

• correct WP 48 AER fork platform;
• compatible KTM or Husqvarna application;
• fork generation corresponding to the supported 2015-2020 range;
• intended Enduro-from-MX-fork configuration;
• correct Dal Soggio SKU 1P.SPH.WP48AEREN3.0.

Final spring setup, oil level, damping adjustment, and chassis balance should be configured according to rider weight, skill level, riding style, terrain, and intended Enduro use.