{"product_id":"ohlins-shock-spring-28-n-mm-200-mm-46-mm-66420-028","title":"Öhlins Shock Spring 28 N\/mm \/ 200 mm \/ Ø 46 mm – 66420-028","description":"\u003cp\u003eÖhlins part number 66420-028 is a shock absorber spring rated at 28 N\/mm, 200 mm long with a 46 mm inner diameter. A rear spring matched to rider and load keeps the chassis attitude where the factory intended it.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 66420-028\u003c\/li\u003e\n\u003cli\u003eFree length 200 mm\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 28 N\/mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 46 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow Öhlins Makes Them\u003c\/h2\u003e\u003cp\u003eEvery Öhlins dealer can re-valve the unit, because the shim stack is a documented, serviceable assembly. Materials read unremarkably on paper — aluminium, steel, nitrogen — and the difference lies in how precisely they are made. Öhlins winds, heat-sets and then measures every spring individually — the rate on the label is the rate you get.\u003c\/p\u003e\u003ch2\u003eDimensions\u003c\/h2\u003e\u003cp\u003eDimensionally this is a 46 mm × 200 mm spring; within that envelope Öhlins offers a range of rates, and this one is 28 N\/mm.\u003c\/p\u003e\u003ch2\u003eWhat This Rate Does\u003c\/h2\u003e\u003cp\u003eRates in this range suit lighter riders and machines that spend their time on real roads rather than smooth circuits. Comfort and grip come from the spring moving early; this is the end of the range where that happens. A softer rate keeps the tyre loaded on a poor surface, which is worth more than outright support on most roads. 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\u003eWhat the Rear Spring Decides\u003c\/h2\u003e\u003cp\u003eÖhlins supplies most of its shocks without a spring precisely so the rate can be matched to the rider rather than averaged. A spring that has settled in service sits shorter than new, which quietly lowers the bike and steepens the steering. Adding a pillion or luggage changes the rear load enough that the standard rate stops working properly.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe safest way to choose is by static sag: set the target figure, and the rate follows from whether you can reach it with preload. Where Öhlins lists this size against a particular unit, the listing is a starting point rather than a boundary. This is a service part in the proper sense — it wears, it settles, and replacing it restores what the suspension was designed to do.\u003c\/p\u003e\u003ch2\u003eWhat Fitting Involves\u003c\/h2\u003e\u003cp\u003eCheck the free length against the old springs before fitting — a sagged original often measures short. Preload spacers usually need shortening or lengthening so the installed length stays correct. Both legs are done together, and both take the same rate.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: no separate certificate. The spring changes the rate, not the construction of the fork, and is treated as a service part.\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 66420-028\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 28 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 200 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 46 mm\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":53645457654026,"sku":"66420-028","price":42400.0,"currency_code":"XOF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_0e9cb80d-cd6a-4439-9c4f-6d88696de4c9.png?v=1788867022","url":"https:\/\/inter-pace.com\/en-bf\/products\/ohlins-shock-spring-28-n-mm-200-mm-46-mm-66420-028","provider":"Inter-Pace","version":"1.0","type":"link"}