The facts.
| Part Number | DSS-005 |
|---|---|
| Brand | K-Tech |
| Manufacturer | NOK (KYB-NOK) |
| Inner Diameter | 41.00 mm |
| Outer Diameter | 53.50 mm |
| Height (1) | 4.80 mm |
| Height (2) | 14.00 mm |
| Scope of Delivery | 2x dust seals |
| Fitment | Aprilia RS 660 (2020–2026) |
DescriptionThe whole story▼
Keeping your fork legs clean is one of the simplest ways to extend the working life of a front suspension system, and the K-Tech DSS-005 dust seals kit makes it straightforward and affordable for every RS 660 owner. Manufactured by NOK — the same supplier behind OEM KYB-NOK fork seals found on countless production motorcycles — these dust seals are a direct, like-for-like replacement that slot straight in without modification.
Key Features
- NOK-manufactured dust seals, the trusted KYB-NOK OEM-grade supplier, for proven durability and dimensional accuracy
- Direct replacement for the original Aprilia RS 660 dust seals — no adapting, no guesswork
- Precision inner diameter of 41.00 mm ensures a secure, rattle-free fit on each fork leg
- Prevents ingress of road grit, trail dust and road debris, protecting the main fork oil seals underneath
- Straightforward installation makes routine fork maintenance accessible even in a modest home workshop
- Kit includes two dust seals, covering both fork legs in one purchase
Everyday Usability and Long-Term Value
The RS 660 is ridden hard on B-roads, short circuits and commutes alike, and the front forks take the brunt of whatever the road throws at them. Dust and grit that bypass worn dust seals will score the fork stanchions and destroy the main oil seals — a repair that costs considerably more than a timely seal replacement. The DSS-005 kit addresses this at the most practical level: genuine NOK-quality parts at an accessible price point, packaged as a ready-to-fit kit so you can complete a fork service in a single session without hunting for individual components.
Build Quality
NOK is a globally recognised manufacturer of precision sealing solutions and supplies components to major suspension manufacturers including KYB. The dust seals in this kit are produced to the same exacting tolerances as the parts fitted at the factory, meaning lip geometry, rubber compound and dimensional accuracy are all equivalent to original specification. The outer diameter of 53.50 mm and the dual-height profile — 4.80 mm and 14.00 mm — correspond exactly to the OEM part geometry for the RS 660 fork assembly.
Fitment and Compatibility
This kit is specifically designed and verified for the following model:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Installation by an authorised K-Tech service centre is recommended to ensure correct fitment and to maintain suspension performance and safety standards.
Specifications
| Part Number | DSS-005 |
|---|---|
| Brand | K-Tech |
| Manufacturer | NOK (KYB-NOK) |
| Inner Diameter | 41.00 mm |
| Outer Diameter | 53.50 mm |
| Height (1) | 4.80 mm |
| Height (2) | 14.00 mm |
| Contents | 2x dust seals |
| Fitment | Aprilia RS 660 (2020–2026) |
What's includedEverything in the box▼
- 2x dust seals
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2026)
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