
The facts.
| Brand | K-Tech |
|---|---|
| Model | TRDS-R Closed Cartridge Kit |
| Part number | 160-020-010-010 |
| Fitment | Aprilia RS 660 (2020–2026) |
| Length | 698 mm |
| Travel | 130 mm |
| Oil/air gap | 230 mm (suggested) |
| Compression adjustment | 36 clicks independent |
| Rebound adjustment | 36 clicks independent |
| Preload adjustment | 18 mm increments |
DescriptionThe whole story▼
Engineered to the exacting safety and performance standards demanded by top-level competition, the K-Tech TRDS-R Closed Cartridge Kit brings Through-Rod damping technology — proven in the British Superbike Championship and at the Isle of Man TT — directly to the Aprilia RS 660. Every component is designed to deliver consistent, controlled suspension behaviour across extended race sessions, giving riders the confidence to push harder knowing the fork internals will not fade or compromise stability.
Key Features
- Through-Rod (TRDS-R) closed cartridge design derived from elite factory race programmes, ensuring structural integrity and predictable damping under sustained load.
- 36-click independent compression adjustment and 36-click independent rebound adjustment for precise, repeatable setup at every circuit or road condition.
- 18 mm incremental preload adjustment allows the spring rate to be matched exactly to rider weight and riding style.
- Improved heat dissipation over conventional open-cartridge systems maintains consistent damping performance deep into long race stints.
- Compact assembly integrates cleanly within the Aprilia RS 660 fork legs without modification to the fork tubes.
- Supplied with a matched spring set, eliminating guesswork when building a complete, balanced front-end package.
Performance & Engineering
The TRDS-R designation refers to K-Tech's Through-Rod Damping System — a closed cartridge architecture that separates the compression and rebound circuits fully, eliminating the cross-talk that limits the tuneability of conventional emulator-style kits. The result is a damping curve that responds faithfully to each click of adjustment rather than masking one setting with another. Riders moving from standard Aprilia RS 660 fork internals will notice a marked improvement in front-end feel under hard braking, through fast changes of direction and over mid-corner bumps where the stock setup can feel vague.
Heat management is a key differentiator at the TRDS-R's price and performance level. Sustained track use generates significant thermal load in fork oil; the closed cartridge geometry and K-Tech's fluid pathways are optimised to dissipate that heat efficiently, preventing viscosity breakdown that would otherwise cause damping to soften progressively across a race distance. The suggested starting settings — 16 compression clicks, 18 rebound clicks, 230 mm oil/air gap — provide a proven baseline from which a qualified technician or experienced rider can dial in further.
Installation & Safety
K-Tech strongly recommends fitting by an authorised K-Tech Service Centre. Specialised tools and techniques are required to install and set up this kit correctly; improper assembly can compromise both performance and rider safety. Please consult your nearest authorised centre before attempting installation.
Fitment & Compatibility
This kit is specifically designed and validated for the following motorcycle:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Specifications
| Parameter | Value |
|---|---|
| Length | 698 mm |
| Oil/air gap | 230 mm (suggested) |
| Travel | 130 mm |
| Compression clicks | 16 (suggested starting point) |
| Rebound clicks | 18 (suggested starting point) |
| Preload adjustment | 18 mm increments |
| Part number | 160-020-010-010 |
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2026)
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