{"product_id":"ohlins-fork-springs-13-0-n-mm-300-mm-25-5-mm-08423-13","title":"Öhlins Fork Springs 13.0 N\/mm \/ 300 mm \/ Ø 25.5 mm – 08423-13","description":"\u003cp\u003eÖhlins part number 08423-13 is a pair of fork springs rated at 13.0 N\/mm, 300 mm long with a 25.5 mm inner diameter. Rate decides where in the stroke the fork sits; damping only decides how fast it gets there.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplied as a pair\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 08423-13\u003c\/li\u003e\n\u003cli\u003eFree length 300 mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 25.5 mm\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 13.0 N\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManufacture and Tolerance\u003c\/h2\u003e\u003cp\u003eThe finish is applied after setting, which means the coating does not affect the rate. Öhlins winds, heat-sets and then measures every spring individually — the rate on the label is the rate you get. Materials read unremarkably on paper — aluminium, steel, nitrogen — and the difference lies in how precisely they are made.\u003c\/p\u003e\u003ch2\u003eDimensions\u003c\/h2\u003e\u003cp\u003eThe 25.5 mm bore and 300 mm length are the two figures that decide whether it physically fits; 13.0 N\/mm decides whether it suits the rider.\u003c\/p\u003e\u003ch2\u003eChoosing 13.0 N\/mm\u003c\/h2\u003e\u003cp\u003eVery firm rates keep the chassis attitude stable when the brakes are used at their limit, at the cost of ride comfort. Very firm rates keep the geometry stable but ask the damping to work harder over small inputs. Track use with sustained heavy braking is the typical reason to go this far. Road surfaces are the hardest test of a spring rate, because the fork has to cope with both a smooth stretch and a broken one.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eAsk us with the machine and rider weight and we will tell you which rate in this size to take. Öhlins builds springs to dimensions rather than to model lists, so the question is always the same: does the diameter fit, does the length fit, and is the rate right for the rider? Selection is by measurement. If the diameter and free length match your fork, the remaining question is the rate.\u003c\/p\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eSet static sag after fitting; the rate is only right if the sag figure lands where Öhlins specifies. Check the free length against the old springs before fitting — a sagged original often measures short. Fitting is a fork-oil job: the legs come apart, the springs go in, the oil level is set to specification.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: a spring is a like-for-like replacement of a wear part and carries no separate type approval. Where Öhlins states an approval for a particular motorcycle, it is named under Applications.\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 08423-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 13.0 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 300 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 25.5 mm\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":53645373243658,"sku":"08423-13","price":161.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/ForkSprings-v2_4ad81e90-7a5b-40ac-9daa-a50cae5f1d8f.png?v=1788863984","url":"https:\/\/inter-pace.com\/products\/ohlins-fork-springs-13-0-n-mm-300-mm-25-5-mm-08423-13","provider":"Inter-Pace","version":"1.0","type":"link"}