{"product_id":"ohlins-shock-spring-66-n-mm-160-mm-57-mm-01091-17","title":"Öhlins Shock Spring 66 N\/mm \/ 160 mm \/ Ø 57 mm – 01091-17","description":"\u003cp\u003eÖhlins part number 01091-17 is a shock absorber spring rated at 66 N\/mm, 160 mm long with a 57 mm inner diameter. Adding a pillion or luggage changes the load enough that the standard rate stops working.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 01091-17\u003c\/li\u003e\n\u003cli\u003eStraight-wound, constant rate\u003c\/li\u003e\n\u003cli\u003eFree length 160 mm\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 66 N\/mm\u003c\/li\u003e\n\u003cli\u003e86 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003ePowder-coated yellow\u003c\/li\u003e\n\u003cli\u003eInner diameter 57 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy the Rate Holds\u003c\/h2\u003e\u003cp\u003eThe wire is progressively wound where the application calls for it and straight where it does not. The Öhlins part number is stamped on the unit, so its specification can be looked up years later. 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 160 mm free length and 57 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\u003eWhat This Rate Does\u003c\/h2\u003e\u003cp\u003eA firm rate keeps the fork high in its stroke under braking, which preserves the geometry when the front is loaded hard. This end of the range suits heavier riders, two-up use, or a machine ridden hard enough that fork dive becomes the limit. A firm rate holds the chassis attitude when the front or rear is loaded hard. 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\u003eHow a Rear Spring Works\u003c\/h2\u003e\u003cp\u003ePreload adjusts sag within a rate; it does not change the rate, and no amount of it will rescue a spring that is wrong. Rear spring rate sets ride height and static sag, and those two decide the chassis attitude before any damping click matters. 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\u003eA spring is one of the few suspension parts that is genuinely interchangeable: same bore, same free length, and it goes in. Sag figures, not feel, decide whether a rate is right. Öhlins publishes the targets for its own units. 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\u003eÖhlins supplies a setting sheet with the springs; the numbers on it assume the specified oil. Preload spacers usually need shortening or lengthening so the installed length stays correct. Öhlins part numbers are stamped on the packaging rather than the spring, so keep the label with the setup notes.\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 01091-17\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 66 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 160 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 57 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStroke:\u003c\/em\u003e 86 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 yellow\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":53645331955978,"sku":"01091-17","price":44200.0,"currency_code":"XOF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_c5fa9f71-0349-4c44-9547-01b243eebe35.png?v=1788866621","url":"https:\/\/inter-pace.com\/en-bf\/products\/ohlins-shock-spring-66-n-mm-160-mm-57-mm-01091-17","provider":"Inter-Pace","version":"1.0","type":"link"}