{"product_id":"ohlins-fork-springs-3-9-n-mm-455-mm-43-6-mm-08437-39","title":"Öhlins Fork Springs 3.9 N\/mm \/ 455 mm \/ Ø 43.6 mm – 08437-39","description":"\u003cp\u003eÖhlins part number 08437-39 is a pair of fork springs rated at 3.9 N\/mm, 455 mm long with a 43.6 mm inner diameter. Factory fork springs are chosen for an average rider on an average road; few riders are either.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree length 455 mm\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 3.9 N\/mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 08437-39\u003c\/li\u003e\n\u003cli\u003eInner diameter 43.6 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow Öhlins Makes Them\u003c\/h2\u003e\u003cp\u003eThe finish is applied after setting, which means the coating does not affect the rate. Shafts are hardened and surface-treated so the seal has a consistent surface to run against. Seals are specified for temperature stability rather than for the lowest unit cost.\u003c\/p\u003e\u003ch2\u003eDimensions\u003c\/h2\u003e\u003cp\u003eFree length 455 mm, inner diameter 43.6 mm, rate 3.9 N\/mm — those three figures define the part completely.\u003c\/p\u003e\u003ch2\u003eChoosing 3.9 N\/mm\u003c\/h2\u003e\u003cp\u003eA rate this low belongs on a long-travel machine or under a light rider — it lets the fork use its full stroke instead of riding high and skating over the surface. If the bike rides high and feels harsh over small stuff, the rate is often the reason rather than the damping. A very soft rate uses more of the stroke, which is usually what an off-road chassis wants. 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? Öhlins offers rates in defined steps so a change can be made in one direction at a time rather than by guesswork.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eThe job needs no special tools beyond a fork spring compressor and a measuring rod for the oil level. Öhlins part numbers are stamped on the packaging rather than the spring, so keep the label with the setup notes. Öhlins states an air gap for this application, and that figure is part of the setting rather than a detail.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: not applicable to the spring on its own. Öhlins issues approvals against complete suspension units, not individual springs.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eFitting matters as much as the part. We are an authorised Öhlins service centre and carry out installation, servicing and setup ourselves — get in touch and we will arrange it alongside your 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 08437-39\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 3.9 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 455 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 43.6 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":53645382189322,"sku":"08437-39","price":161.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/ForkSprings-v2_118d02fa-ae31-4faf-a7ee-b0befefb7e4d.png?v=1788864122","url":"https:\/\/inter-pace.com\/products\/ohlins-fork-springs-3-9-n-mm-455-mm-43-6-mm-08437-39","provider":"Inter-Pace","version":"1.0","type":"link"}