{"product_id":"k-tech-fork-oil-seal-kit-aprilia-rsv4-rsv4-1100-factory-r-rr-rf-fss","title":"K-Tech Fork Oil Seal Kit Aprilia RSV4 \/ RSV4 1100 Factory \/ R \/ RR \/ RF (2009–2026) FSS-021","description":"\u003cp\u003eSuspension integrity on the Aprilia RSV4 and RSV4 1100 begins with seals that can handle the demands of both road and track. The K-Tech FSS-021 oil seal kit is manufactured by NOK — the supplier of choice for leading Japanese suspension manufacturers worldwide — and brings that same engineering rigour directly to your fork service. When only factory-grade materials will do, this is the kit that delivers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNOK-manufactured seals, chosen by premier Japanese suspension OEMs for their exceptional durability and consistent sealing performance\u003c\/li\u003e\n\u003cli\u003eDirect OEM-equivalent replacement — precise dimensional match ensures no compromise in damping characteristics or seal life\u003c\/li\u003e\n\u003cli\u003eSupplied as a complete pair so both fork legs are serviced simultaneously, maintaining balanced suspension action\u003c\/li\u003e\n\u003cli\u003ePrecision dimensions of 43.00 x 55.10 x 11.00\/14.00 mm guarantee a factory-correct fit in the RSV4 fork tubes\u003c\/li\u003e\n\u003cli\u003eEffective dual-lip construction keeps fork oil in and road contamination out, preserving smooth, consistent damping over the long term\u003c\/li\u003e\n\u003cli\u003eCovers all RSV4 and RSV4 1100 variants — Factory, R, RR and RF — across the full 2009–2026 production span\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eThe defining characteristic of the FSS-021 kit is provenance. NOK is not a generic aftermarket supplier; they are the original-equipment seal manufacturer behind many of the world's most respected suspension units. Their production process demands tight dimensional tolerances and compound consistency that cheaper alternatives cannot match. The result is a seal that seats cleanly, resists premature wear and maintains its lip profile across temperature cycles — from cold pre-dawn warm-ups to sustained track sessions where fork temperatures climb significantly.\u003c\/p\u003e\u003cp\u003eFor the Aprilia RSV4 platform — a chassis known for precise, reactive front-end feel — this level of manufacturing quality is not a luxury. A weeping fork seal introduces unwanted variables into suspension behaviour and contaminates the brake disc if left unaddressed. Fitting seals of this calibre during a fork service eliminates those risks and restores the front end to the condition it left the factory in.\u003c\/p\u003e\u003ch2\u003eInstallation Note\u003c\/h2\u003e\u003cp\u003eInstallation of fork oil seals requires specialised tools and a working knowledge of suspension servicing procedures. K-Tech recommends that fitting is carried out by an authorised K-Tech Service Centre to ensure full performance and safety of the product.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe K-Tech FSS-021 seal kit is designed as a direct replacement for the following Aprilia models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia RSV4 R — 2009 to 2015\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 Factory — 2009 to 2015\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RR — 2015 to 2020\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RF — 2015 to 2020\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 1100 — 2019 to 2026\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 1100 Factory — 2019 to 2026\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInner diameter: 43.00 mm\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 55.10 mm\u003c\/li\u003e\n\u003cli\u003eHeight (1): 11.00 mm\u003c\/li\u003e\n\u003cli\u003eHeight (2): 14.00 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 2 oil seals per kit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-Tech","offers":[{"title":"Default Title","offer_id":53168814522634,"sku":"FSS-021","price":33.88,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FSS_76f204c6-dbcf-4249-8709-53acbdf4de79.png?v=1780816321","url":"https:\/\/inter-pace.com\/products\/k-tech-fork-oil-seal-kit-aprilia-rsv4-rsv4-1100-factory-r-rr-rf-fss","provider":"Inter-Pace","version":"1.0","type":"link"}