{"product_id":"k-tech-fork-oil-seal-kit-aprilia-rs-660","title":"K-Tech Fork Oil Seal Kit for Aprilia RS 660 (2020–2026) – FSS-005","description":"\u003cp\u003ePrecision-engineered by K-Tech and manufactured by NOK — one of the most trusted names in suspension sealing — this fork oil seal kit is the definitive maintenance choice for the Aprilia RS 660. Part number FSS-005 delivers an exact-fit, OEM-grade replacement that restores fork integrity and prevents oil weeping, keeping your suspension performing exactly as the engineers intended across the full 2020–2026 model range.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eProduced by NOK, the preferred OEM seal supplier for leading Japanese suspension manufacturers — a mark of quality recognised across the industry.\u003c\/li\u003e\n\u003cli\u003eExact-fit replacement for Aprilia RS 660 factory fork seals, eliminating guesswork and fitment concerns.\u003c\/li\u003e\n\u003cli\u003ePrecise dimensions of 41.00 x 53.00 x 8.00\/10.50 mm ensure a flush, leak-free interface with the fork tube.\u003c\/li\u003e\n\u003cli\u003eKit contains two seals, covering both fork legs for a complete, balanced service in a single purchase.\u003c\/li\u003e\n\u003cli\u003eRestores full damping performance and extends fork leg service life by preventing oil contamination of the dust seal and stanchion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Heritage\u003c\/h2\u003e\u003cp\u003eK-Tech Suspension has built its reputation on the race circuits of WorldSBK and the British Superbike Championship, and that commitment to precision cascades down to every component in the catalogue — including the consumables. By sourcing fork oil seals from NOK, a manufacturer with decades of OEM supply relationships with the world's foremost suspension builders, K-Tech ensures that FSS-005 meets or exceeds the original Aprilia specification. The dual-lip profile and material compound are selected to resist the thermal cycling and fork oil chemistry found in modern telescopic forks, making these seals equally at home on a track day as on a daily commute.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eA leaking fork seal is more than a cosmetic nuisance — oil migration onto the brake disc and tyre contact patch poses a genuine safety risk. Replacing worn seals with the K-Tech FSS-005 kit returns the RS 660's front end to factory-fresh condition: consistent damping, accurate steering feedback and confidence-inspiring braking. For riders who use their RS 660 on track, where fork loads are significantly higher, the NOK compound's durability provides the assurance that the seal will remain effective throughout a full circuit session.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis kit is designed specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eAprilia RS 660 – model years 2020, 2021, 2022, 2023, 2024, 2025 and 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAlways verify fork tube diameter against the supplied dimensions before installation. If in any doubt, consult an authorised K-Tech service centre prior to fitment.\u003c\/p\u003e\u003cp\u003eInstallation note: fitting fork oil seals requires dedicated seal drivers and a sound understanding of telescopic fork service procedures. K-Tech recommends that this work is carried out by an authorised K-Tech Service Centre to guarantee full performance and safety.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: FSS-005\u003c\/li\u003e\n\u003cli\u003eInner diameter: 41.00 mm\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 53.00 mm\u003c\/li\u003e\n\u003cli\u003eHeight (1): 8.00 mm\u003c\/li\u003e\n\u003cli\u003eHeight (2): 10.50 mm\u003c\/li\u003e\n\u003cli\u003eSeal manufacturer: NOK\u003c\/li\u003e\n\u003cli\u003eQuantity included: 2 fork oil seals\u003c\/li\u003e\n\u003cli\u003eFitment: Aprilia RS 660 (2020–2026)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-Tech","offers":[{"title":"Default Title","offer_id":53168813375754,"sku":"FSS-005","price":22.56,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FSS.png?v=1780816264","url":"https:\/\/inter-pace.com\/products\/k-tech-fork-oil-seal-kit-aprilia-rs-660","provider":"Inter-Pace","version":"1.0","type":"link"}