Kit B-ONE Sachs Midvalve Upgrade Kit Dal Soggio – BETA 2019 – 2023
Dal Soggio B-One internal suspension upgrade kit for Beta motorcycles equipped with Sachs Open Cartridge front forks from 2019 to 2024, featuring revised base-valve shimming and a dedicated mid-valve system with a CNC-machined 4-port piston.
$254.99
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Product Description
The Dal Soggio 1P.KIT_B-ONE B-One Kit is an internal front suspension upgrade developed specifically for Sachs Open Cartridge forks fitted to compatible Beta motorcycles from 2019 to 2024.
The B-One was designed as a practical alternative for riders who want to improve the behavior of the original Sachs fork without replacing the complete internal cartridge system.
The kit works by modifying two key areas of the hydraulic damping system.
First, the base-valve shim configuration is revised to change the way oil flow is controlled during suspension movement.
Second, the original mid-valve system is replaced with a dedicated Dal Soggio assembly, which incorporates a CNC-machined piston with 4 oil passages.
This combination allows the hydraulic system to manage oil flow more effectively while retaining the original Sachs Open fork architecture.
Dal Soggio positions the B-One as a functional upgrade for riders who are generally satisfied with their standard suspension but want better damping behavior, front-end response, and tuning potential without moving to a complete cartridge replacement.
For optimum function of the upgrade kit, Dal Soggio recommends using CUBE suspension oil.
Key Features
- Developed for compatible Beta motorcycles equipped with Sachs Open Cartridge front forks from 2019 to 2024
- Revises the base-valve shim configuration to improve hydraulic oil-flow control
- Replaces the original mid-valve system with a dedicated Dal Soggio assembly
- Includes a CNC-machined mid-valve piston featuring 4 oil passages
- Provides a targeted suspension upgrade while retaining the original Sachs Open fork architecture
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Dal Soggio Race |
| Part Number / SKU | 1P.KIT_B-ONE |
| Product Family | B-One |
| Product Type | Front Fork Mid-Valve / Hydraulic Upgrade Kit |
| Fork Platform | Sachs Open Cartridge |
| Motorcycle Brand | Beta |
| Compatibility Period | 2019-2024 |
| Suspension Position | Front |
| Base Valve Modification | Revised shim configuration |
| Mid-Valve System | Replaced with Dal Soggio system |
| Mid-Valve Piston | CNC-machined |
| Oil Passages | 4 |
| Recommended Suspension Oil | Dal Soggio CUBE Oil |
| Installation Type | Internal retrofit |
| Professional Installation | Recommended |
Application & Compatibility
The 1P.KIT_B-ONE is designed for compatible Beta motorcycles fitted with Sachs Open Cartridge front forks from 2019 to 2024.
The actual fork fitted to the motorcycle should always be verified before ordering, because Beta has used different suspension configurations across certain models, trims, and model years.
The defining compatibility requirement for this kit is therefore the presence of the corresponding Sachs Open Cartridge fork, rather than the Beta model name alone.
How the B-One Kit Works
The B-One improves the original Sachs Open hydraulic system through a combination of base-valve re-shimming and a replacement mid-valve system.
The base valve controls part of the hydraulic flow generated during fork compression. By changing its shim configuration, the damping response can be altered without replacing the entire assembly.
The mid valve provides an additional hydraulic control point inside the fork. Dal Soggio replaces the original system with its own design, incorporating a dedicated CNC-machined piston with four oil passages.
Together, these modifications allow the suspension to regulate oil flow through a more purpose-developed damping arrangement.
CNC-Machined 4-Port Piston
A central component of the B-One system is the Dal Soggio mid-valve piston.
The piston is CNC machined and features 4 oil passages.
These passages control how suspension fluid moves through the damping system and work together with the shim stack to determine hydraulic resistance during fork movement.
Dal Soggio does not publish a verified material specification for this B-One piston in the current product description, so no material designation is stated here.
Suspension Behavior
The B-One Kit is intended to provide an improvement over the standard Sachs Open Cartridge configuration without the complexity or cost of a full replacement cartridge.
The upgrade is designed to improve:
- hydraulic damping control;
- suspension response over varying terrain;
- front-end feedback;
- consistency through the fork stroke;
- overall tunability of the original suspension.
Dal Soggio specifically positions B-One as a practical upgrade rather than as the most radical solution in its range.
For very demanding applications such as intensive Hard Enduro use, Dal Soggio identifies its complete SPHERE cartridge system as the more comprehensive alternative.
Recommended Oil
For optimum operation of the B-One Kit, Dal Soggio recommends CUBE Oil.
Correct suspension-fluid selection is important for maintaining consistent damping characteristics, proper bleeding, and predictable hydraulic response.
Installation Note
Installation requires opening and servicing the Sachs Open Cartridge fork, changing the base-valve shim configuration, replacing the mid-valve components with the Dal Soggio system, refilling the fork with suitable suspension oil, and accurately bleeding the hydraulic circuit.
Correct valving assembly and final setup are essential to suspension performance.
For this reason, installation and setup by a qualified suspension technician or Dal Soggio specialist are recommended.