{"product_id":"ohlins-fork-springs-6-5-n-mm-468-mm-43-5-mm-02421-65","title":"Öhlins Fork Springs 6.5 N\/mm \/ 468 mm \/ Ø 43.5 mm – 02421-65","description":"\u003cp\u003eÖhlins part number 02421-65 is a pair of fork springs rated at 6.5 N\/mm, 468 mm long with a 43.5 mm inner diameter. A fork that is sprung wrong uses up its travel before the damping has a chance to work.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree length 468 mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 43.5 mm\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 6.5 N\/mm\u003c\/li\u003e\n\u003cli\u003e262 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eTapered-wound, constant rate\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 02421-65\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy the Rate Holds\u003c\/h2\u003e\u003cp\u003eÖhlins machines its own critical components instead of buying them in, and the tolerances are where the money goes. Every unit is dyno-tested against the curve held for its part number, not sampled from a batch. The finish is applied after setting, which means the coating does not affect the rate.\u003c\/p\u003e\u003ch2\u003eThe Numbers That Matter\u003c\/h2\u003e\u003cp\u003eAt 468 mm free length and 43.5 mm inner diameter, this spring is dimensionally interchangeable with anything of the same size — the rate is what makes it a different part.\u003c\/p\u003e\u003ch2\u003eWhere This Rate Belongs\u003c\/h2\u003e\u003cp\u003eThe trade is fork dive under braking — noticeable, but rarely the limiting factor on the road. On a machine ridden solo and mostly on the road, softer is often the honest choice. Lighter riders usually end up a step or two below the factory rate once sag is measured properly. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eSag figures, not feel, decide whether a rate is right. Öhlins publishes the targets for its own units. Where Öhlins lists this size against a particular unit, the listing is a starting point rather than a boundary. The safest way to choose is by static sag: set the target figure, and the rate follows from whether you can reach it with preload.\u003c\/p\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eFitting is a fork-oil job: the legs come apart, the springs go in, the oil level is set to specification. Preload spacers usually need shortening or lengthening so the installed length stays correct. Springs are supplied ready to fit; no cutting, grinding or packing is needed.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: springs are not separately type-approved in Germany because they substitute a part that is already homologated with the fork. Model-specific documents, where they exist, are named above.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eThis is not a part to rush. Öhlins recommends installation by an authorised service centre, and we are an authorised Öhlins service centre — fitting, servicing and setup all happen here. Get in touch if you would like the work done with the order.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eBrand:\u003c\/em\u003e Öhlins\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePart Number:\u003c\/em\u003e 02421-65\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 6.5 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 468 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 43.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStroke:\u003c\/em\u003e 262 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eConstruction:\u003c\/em\u003e Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePackaging Unit:\u003c\/em\u003e Pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCountry of Origin:\u003c\/em\u003e Sweden\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Öhlins","offers":[{"title":"Default Title","offer_id":53645352993034,"sku":"02421-65","price":136.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/ForkSprings-v2_fe29e1e2-fabb-4449-95a3-3f0a7e759639.png?v=1788863633","url":"https:\/\/inter-pace.com\/products\/ohlins-fork-springs-6-5-n-mm-468-mm-43-5-mm-02421-65","provider":"Inter-Pace","version":"1.0","type":"link"}