WP Xplor 48 XP-One Upgrade Kit 2017-2021 Dal Soggio – KTM EXC and HUSQVARNA
Dal Soggio XP-One internal suspension upgrade kit developed for WP Xplor 48 front forks fitted to KTM EXC and Husqvarna Enduro models from 2017 to 2021, replacing the original base-valve arrangement and adding a dedicated mid-valve system for improved hydraulic oil-flow control.
$249.99
13 In Stock
Product Description
The Dal Soggio 1P.KIT_XP-ONE XP-One Kit is an internal front suspension upgrade developed specifically for WP Xplor 48 forks fitted to KTM EXC and Husqvarna Enduro motorcycles from 2017 to 2021.
The original WP Xplor architecture uses separate damping functions between the two fork legs. Dal Soggio developed the XP-One system to modify this hydraulic arrangement and provide more controlled oil flow within the fork.
The kit replaces the original base valve and introduces a dedicated mid-valve system, which Dal Soggio notes is not present in the original fork configuration.
By adding this additional hydraulic control point, the XP-One kit is designed to regulate oil flow more effectively throughout the suspension stroke and improve the behavior of the original WP Xplor fork.
Dal Soggio describes the XP-One as the simplest and most essential upgrade in its WP Xplor product range, while still providing a meaningful improvement over the standard fork.
The system is intended to improve initial sensitivity, damping control, front-end feel, and overall suspension behavior without replacing the complete fork or installing a full cartridge conversion.
For optimum operation, Dal Soggio recommends using CUBE suspension oil.
Key Features
- Developed specifically for WP Xplor 48 front forks fitted to KTM EXC and Husqvarna Enduro models from 2017 to 2021
- Replaces the original base-valve configuration and introduces a dedicated mid-valve system
- Designed to provide more controlled hydraulic oil flow throughout the fork stroke
- Improves the original WP Xplor suspension while retaining the complete OEM fork assembly
- Developed and tested with Dal Soggio CUBE suspension oil for optimum hydraulic performance
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Dal Soggio Race |
| Part Number / SKU | 1P.KIT_XP-ONE |
| Product Family | XP-One |
| Product Type | Front Fork Hydraulic Upgrade Kit |
| Fork Platform | WP Xplor 48 |
| Suspension Position | Front |
| Compatibility Period | 2017-2021 |
| Primary Brands | KTM / Husqvarna |
| Base Valve Upgrade | Yes |
| Mid-Valve System | Included / added by XP-One |
| OEM Mid Valve | Not present in the original configuration, according to Dal Soggio |
| Installation Configuration | Internal upgrade acting on both fork legs |
| Recommended Suspension Oil | Dal Soggio CUBE Oil |
| Professional Installation | Recommended |
Application & Compatibility
The 1P.KIT_XP-ONE is designed for WP Xplor 48 front forks fitted to:
- KTM EXC models – 2017 to 2021
- Husqvarna Enduro models – 2017 to 2021
Dal Soggio specifically distinguishes this first-generation XP-One from the later 1P.KIT_XP-ONE-V2, which is used on 2022-2023 KTM/Husqvarna applications and compatible GasGas 2024 models.
The 2017-2021 version works on both fork legs, while the later V2 configuration is installed only on the compression-side left leg.
Compatibility should always be verified against the actual WP Xplor 48 fork fitted to the motorcycle.
How the XP-One Kit Works
The original WP Xplor fork does not use the same hydraulic architecture as a conventional fork equipped with a dedicated mid valve.
The XP-One Kit modifies this arrangement by:
- replacing the original base-valve components;
- introducing a dedicated mid-valve system;
- changing how oil is managed through the damping circuits;
- providing greater control of hydraulic flow during fork movement.
The purpose of this modification is to obtain a more controlled damping response throughout the suspension stroke.
By regulating oil flow more precisely, the system is designed to provide improved front-end feel and more predictable behavior across varying terrain and suspension speeds.
Base Valve and Mid Valve Upgrade
A key feature of the XP-One system is the introduction of a mid valve that is not present in the original WP Xplor configuration.
The base valve and mid valve work together to control hydraulic flow more effectively than the standard architecture.
This allows the suspension technician to work with a more conventional and tunable damping structure while still using the original WP Xplor fork assembly.
Suspension Behavior
Dal Soggio describes the XP-One as providing a softer feel at the beginning of the suspension stroke while improving the overall feel and performance of the WP Xplor fork.
The upgrade is intended to improve:
- initial fork sensitivity;
- hydraulic damping control;
- response over small and repeated impacts;
- front-wheel feedback;
- suspension consistency across varying terrain.
Recommended Oil
The XP-One Kit was developed and tested using Dal Soggio CUBE suspension oil, and Dal Soggio recommends its use for optimum operation.
Correct suspension oil selection is important for maintaining predictable damping, proper bleeding, and consistent hydraulic response.
Installation Note
Installation requires complete servicing of the relevant WP Xplor fork components, replacement of the base-valve parts, installation of the XP-One mid-valve system, correct oil filling, and accurate hydraulic bleeding.
Dal Soggio documentation also notes that the compression adjustment direction becomes inverted after installation, so the supplied identification label should be applied accordingly.
Because correct assembly, valving, oil level, and final setup directly affect suspension behavior, installation by a qualified suspension technician or Dal Soggio specialist is recommended.