{"product_id":"ohlins-shock-spring-15-24-n-mm-260-mm-46-mm-66387-01","title":"Öhlins Shock Spring 15-24 N\/mm \/ 260 mm \/ Ø 46 mm – 66387-01","description":"\u003cp\u003eÖhlins part number 66387-01 is a shock absorber spring rated at 15-24 N\/mm, 260 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\u003e140 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eProgressively wound\u003c\/li\u003e\n\u003cli\u003ePowder-coated black\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 66387-01\u003c\/li\u003e\n\u003cli\u003eFree length 260 mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 46 mm\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 15-24 N\/mm (progressive)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy the Rate Holds\u003c\/h2\u003e\u003cp\u003eAnodising is hard-coat rather than decorative, which matters on a component exposed to road salt and stone chips. The Öhlins part number is stamped on the unit, so its specification can be looked up years later. Materials read unremarkably on paper — aluminium, steel, nitrogen — and the difference lies in how precisely they are made.\u003c\/p\u003e\u003ch2\u003eThe Numbers That Matter\u003c\/h2\u003e\u003cp\u003eDimensionally this is a 46 mm × 260 mm spring; within that envelope Öhlins offers a range of rates, and this one is 15-24 N\/mm.\u003c\/p\u003e\u003ch2\u003eHow a Rear Spring Works\u003c\/h2\u003e\u003cp\u003eRear spring rate sets ride height and static sag, and those two decide the chassis attitude before any damping click matters. Two riders 20 kg apart on the same motorcycle genuinely need different rates, not different clicks. The damper can only control the spring it is given; the wrong rate makes every setting a compromise.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eNothing about the installation changes across a rate range: the mounting, the length and the bore stay the same. Öhlins offers rates in defined steps so a change can be made in one direction at a time rather than by guesswork. Where Öhlins lists this size against a particular unit, the listing is a starting point rather than a boundary.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eWork on both legs in one session so the fork stays symmetrical. Springs are supplied ready to fit; no cutting, grinding or packing is needed. Fork oil should be replaced at the same time — it is already out of the leg.\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\u003eWe are an authorised Öhlins service centre, so the installation does not have to be your problem: we fit and set up Öhlins components in our own workshop. Ask us when you order and we will include the work.\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 66387-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 15-24 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 260 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 140 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eConstruction:\u003c\/em\u003e Prog.\/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":53645455065354,"sku":"66387-01","price":90.87,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_36717c31-37ce-451f-b15d-3c24aa9b0e14.png?v=1788867004","url":"https:\/\/inter-pace.com\/products\/ohlins-shock-spring-15-24-n-mm-260-mm-46-mm-66387-01","provider":"Inter-Pace","version":"1.0","type":"link"}