K-Tech 20IDS Open Cartridge Kit for KTM RC 390 (2022–2025) – 120-022-155-005
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Unlock the full potential of your KTM RC 390's standard fork legs with the K-Tech 20IDS Open Cartridge Kit — a precision-engineered upgrade that transforms everyday ride quality and delivers genuinely adjustable damping without the need for a complete fork overhaul. Whether you're commuting, canyon-carving or heading to the track, this kit gives you a suspension setup that actually works for you.
Key Features
- 20mm Independent Damping System (20IDS) designed specifically for the stock KTM RC 390 fork, retaining the original outer tubes
- 30 clicks of independent compression adjustment and 30 clicks of independent rebound adjustment for fine-grained, repeatable tuning
- 18 mm preload adjustment range to suit different rider weights and road conditions
- Increased stroke compared to the original cartridge, improving mid-corner composure and bump absorption
- Aircraft-grade aluminium construction throughout, hard-anodised and super-finished for long-term durability and consistent damper action
- Suggested baseline settings of 16 compression clicks and 18 rebound clicks give you a reliable starting point for daily riding
Everyday Usability and Real-World Value
The stock KTM RC 390 fork performs adequately from the factory, but it leaves a considerable amount of ride quality on the table. The K-Tech 20IDS kit addresses this directly by replacing the internals with a fully independent cartridge system that lets you dial in exactly how the bike behaves under braking, through corners and over rough surfaces — all without specialist workshop time every time you want to change a setting. Compression and rebound circuits operate independently, so adjusting one does not upset the other. This makes finding your preferred setup methodical and straightforward rather than a process of trial and error.
The hard-anodised, super-finished aluminium components resist corrosion and maintain consistent oil film behaviour across a wide temperature range, meaning the fork feels the same on a cold morning commute as it does after a long summer ride. The 700 mm overall length and 125 mm stroke are matched to the RC 390's geometry, preserving steering angles and ground clearance while genuinely improving feedback from the front tyre.
Installation Guidance
K-Tech recommend installation by an authorised K-Tech Service Centre to ensure correct fitting and optimum performance. Please note that matching fork springs (36-260 series) must be ordered separately — they are not included with this cartridge kit.
Fitment & Compatibility
This cartridge kit is designed exclusively for the following motorcycle:
- KTM RC 390 (2022, 2023, 2024, 2025)
Specifications
| Parameter | Value |
|---|---|
| Part number | 120-022-155-005 |
| System | 20mm Independent Damping System (20IDS) |
| Inner diameter | 20 mm |
| Outer diameter | 10 mm |
| Length | 700 mm |
| Stroke | 125 mm |
| Compression adjustment | 30 clicks (independent) |
| Rebound adjustment | 30 clicks (independent) |
| Preload adjustment | 18 mm |
| Suggested compression setting | 16 clicks |
| Suggested rebound setting | 18 clicks |
| Spring series (sold separately) | 36-260 series |
| Fitment | KTM RC 390 (2022–2025) |
| Brand | K-Tech |
|---|---|
| Part number | 120-022-155-005 |
| System | 20mm Independent Damping System (20IDS) |
| Inner diameter | 20 mm |
| Outer diameter | 10 mm |
| Length | 700 mm |
| Stroke | 125 mm |
| Compression adjustment | 30 clicks (independent) |
| Rebound adjustment | 30 clicks (independent) |
| Preload adjustment | 18 mm |
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// K-Tech
K-Tech 20IDS Open Cartridge Kit for KTM RC 390 (2022–2025) – 120-022-155-005

Tech specs
- Brand
- K-Tech
- Part number
- 120-022-155-005
- System
- 20mm Independent Damping System (20IDS)
- Inner diameter
- 20 mm
- Outer diameter
- 10 mm
- Length
- 700 mm
- Stroke
- 125 mm
- Compression adjustment
- 30 clicks (independent)
- Rebound adjustment
- 30 clicks (independent)
- Preload adjustment
- 18 mm
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
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