{"product_id":"ohlins-shock-spring-30-n-mm-180-mm-46-mm-00181-05","title":"Öhlins Shock Spring 30 N\/mm \/ 180 mm \/ Ø 46 mm – 00181-05","description":"\u003cp\u003eÖhlins part number 00181-05 is a shock absorber spring rated at 30 N\/mm, 180 mm long with a 46 mm inner diameter. Rear spring rate sets ride height, static sag and how much of the damper's stroke is actually usable.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePowder-coated black\u003c\/li\u003e\n\u003cli\u003e110 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eStraight-wound, constant rate\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 30 N\/mm\u003c\/li\u003e\n\u003cli\u003eFree length 180 mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 46 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00181-05\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy the Rate Holds\u003c\/h2\u003e\u003cp\u003eThe finish is applied after setting, which means the coating does not affect the rate. Two units carrying the same part number behave the same way out of the box, which is the whole point of testing each one. Anodising is hard-coat rather than decorative, which matters on a component exposed to road salt and stone chips.\u003c\/p\u003e\u003ch2\u003eDimensions\u003c\/h2\u003e\u003cp\u003eAt 180 mm free length and 46 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\u003eChoosing 30 N\/mm\u003c\/h2\u003e\u003cp\u003eLighter riders usually end up a step or two below the factory rate once sag is measured properly. On a machine ridden solo and mostly on the road, softer is often the honest choice. Rates in this range suit lighter riders and machines that spend their time on real roads rather than smooth circuits. Ride quality on the road is decided by rate first and damping second.\u003c\/p\u003e\u003ch2\u003eWhat the Rear Spring Decides\u003c\/h2\u003e\u003cp\u003eA shock absorber spring carries the whole rear of the machine through a linkage that multiplies its rate several times over — which is why the number on the spring looks so much larger than a fork rate. Two riders 20 kg apart on the same motorcycle genuinely need different rates, not different clicks. 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\u003eÖhlins 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? Rate is the variable that depends on the rider, not on the machine. Two people on the same bike may well want two different numbers. Rather than a model list, use the measurements: a fork that accepts this diameter and length is a candidate, and the rate follows from rider weight.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eSpring preload spacers may need adjusting to keep the installed length correct. Fork oil should be replaced at the same time — it is already out of the leg. Öhlins states the oil and the air-gap for this application — both are part of the setting, not a detail.\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\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 00181-05\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 30 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 180 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 46 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStroke:\u003c\/em\u003e 110 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eConstruction:\u003c\/em\u003e Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFinish:\u003c\/em\u003e Powder-coated black\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":53645315440906,"sku":"00181-05","price":340.0,"currency_code":"PGK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_52e5bfea-aebe-4b4e-88de-579f2163653b.png?v=1788866518","url":"https:\/\/inter-pace.com\/en-pg\/products\/ohlins-shock-spring-30-n-mm-180-mm-46-mm-00181-05","provider":"Inter-Pace","version":"1.0","type":"link"}