Dal Soggio SPHERE 3.0 Showa 49 Honda CRF450R Cartridge Kit

The Dal Soggio SPHERE 3.0 Showa 49 Honda CRF450 Cartridge Kit is a high-performance suspension upgrade developed for Showa 49 mm motocross front forks used on compatible Honda CRF450R motorcycles.

Dal Soggio officially identifies SKU 1P.SPH.49HOCRF4503.0 as the Sphere Showa 49 Honda CRF 450 2017-25 3.0, classified for Honda Cross / motocross applications from 2017 through 2025.

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 update is the redesigned bladder, which features a thinner yet stronger internal construction. According to Dal Soggio, 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. Each damping range can therefore be modified independently, giving suspension technicians greater freedom to tailor fork behavior to rider weight, riding style, track conditions, and setup requirements.

Another major development is the new 36 mm compression piston, replacing the previous 28 mm design. Dal Soggio states that the larger piston significantly increases the linearity of the front fork’s hydraulic response.

SPHERE 3.0 also introduces Direct Flow Technology. The compression piston takes oil directly rather than through the previous Z-shaped passages, reducing internal flow complexity and helping lower hydraulic stress inside the cartridge.

For motocross use, these characteristics are intended to provide a more sensitive and predictable front end while maintaining hydraulic support through braking bumps, acceleration chop, ruts, jump faces, landings, and other demanding track conditions.

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 Showa 49 mm Honda CRF450 motocross forks
• New thinner and stronger bladder improves cartridge sensitivity and hydraulic bleeding precision
• Separate High-Speed and Low-Speed Compression settings allow independent 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.49HOCRF4503.0
Product Name	SPHERE 3.0 Showa 49 Honda CRF450
Product Type	Hydraulic Fork Cartridge Kit
Series	SPHERE 3.0
Fork Platform	Showa 49 mm
Discipline	Motocross / Cross
Motorcycle Brand	Honda
Primary Motorcycle Application	CRF450R
Compatibility Years	2017-2025
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.49HOCRF4503.0 SPHERE 3.0 is designed for compatible Showa 49 mm front forks fitted to Honda CRF450 motocross motorcycles.

Dal Soggio officially classifies this version as:

SHOWA – Honda CRF 450 – Cross – 2017-2025.

For B2C fitment, this application is treated as Honda CRF450R 2017-2025, which is the motocross model corresponding to the Cross designation.

Because fork specifications can vary by model, production year, market, or modified suspension configuration, always verify the actual Showa 49 mm fork fitted to the motorcycle before installation.

Hydraulic System & Performance

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

The new bladder improves hydraulic responsiveness, while the separated high-speed and low-speed compression circuits give the suspension technician greater tuning flexibility.

The 36 mm compression piston provides a larger working diameter than the previous 28 mm design, contributing to a more linear hydraulic response.

With Direct Flow Technology, oil reaches the compression piston directly rather than traveling through the previous Z-shaped internal passages.

Motocross Application

The Showa 49 SPHERE 3.0 version is designed around the demands of motocross riding.

A motocross front fork must combine sensitivity at the beginning of the stroke with sufficient hydraulic support through hard braking, acceleration bumps, jump faces, landings, square edges, and repeated high-speed impacts.

The separate compression circuits allow slower chassis movements to be tuned independently from faster suspension events.

Low-speed compression adjustment can influence braking support, chassis attitude, and rider-induced movements, while high-speed compression adjustment can help manage sharp impacts and rapid fork movements.

Oil & Service

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

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

Dal Soggio recommends installation and setup through qualified suspension specialists.

Installation Note

Before installation, confirm:

• correct Showa 49 mm front fork;
• compatible Honda CRF450 motocross application;
• motorcycle production year within 2017-2025;
• correct Dal Soggio SKU 1P.SPH.49HOCRF4503.0.

Final spring setup, oil level, damping adjustment, and chassis balance should be configured according to rider weight, skill level, riding style, and track conditions.