{"product_id":"ohlins-shock-spring-80-n-mm-150-mm-57-mm-21115-24","title":"Öhlins Shock Spring 80 N\/mm \/ 150 mm \/ Ø 57 mm – 21115-24","description":"\u003cp\u003eÖhlins part number 21115-24 is a shock absorber spring rated at 80 N\/mm, 150 mm long with a 57 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\u003eStraight-wound, constant rate\u003c\/li\u003e\n\u003cli\u003eFree length 150 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21115-24\u003c\/li\u003e\n\u003cli\u003eInner diameter 57 mm\u003c\/li\u003e\n\u003cli\u003ePowder-coated black\u003c\/li\u003e\n\u003cli\u003e80 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 80 N\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow Öhlins Makes Them\u003c\/h2\u003e\u003cp\u003eRates are offered in defined steps, so a change can be made in one direction at a time. Öhlins winds, heat-sets and then measures every spring individually — the rate on the label is the rate you get. Shafts are hardened and surface-treated so the seal has a consistent surface to run against.\u003c\/p\u003e\u003ch2\u003eThe Numbers That Matter\u003c\/h2\u003e\u003cp\u003eDimensionally this is a 57 mm × 150 mm spring; within that envelope Öhlins offers a range of rates, and this one is 80 N\/mm.\u003c\/p\u003e\u003ch2\u003eWhat This Rate Does\u003c\/h2\u003e\u003cp\u003eSupport under braking improves; small-bump comfort gives a little back. Heavier riders, two-up use and track days all push the choice towards this end. If the suspension bottoms out or the geometry collapses under load, this is the direction to go. 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\u003eOn a linkage-equipped machine the wheel moves several millimetres for every millimetre the damper moves, and the spring rate has to account for that ratio. Two riders 20 kg apart on the same motorcycle genuinely need different rates, not different clicks. Because the linkage is progressive on most modern machines, a small change in rate moves the sag more than riders expect.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eSelection is by measurement. If the diameter and free length match your fork, the remaining question is the rate. Sag figures, not feel, decide whether a rate is right. Öhlins publishes the targets for its own units. There is no model list for this size because the spring is a dimensional part: it fits whatever fork it physically fits.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eIf the fork has not been serviced recently, bushes and seals are worth replacing while it is apart. A spring that is the correct length still needs the preload spacer checked, since installed length is what sets sag. Öhlins supplies a setting sheet with the springs; the numbers on it assume the specified oil.\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\u003eÖhlins components deliver what they promise once they are fitted and set up properly. As an authorised Öhlins service centre we do exactly that in house — installation, service and setup. Simply ask if you would like us to take care of it.\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 21115-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 80 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 150 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 80 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":53645413351690,"sku":"21115-24","price":373.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_1f816683-bf90-4798-b47f-ad8fffd2168a.png?v=1788866890","url":"https:\/\/inter-pace.com\/en-il\/products\/ohlins-shock-spring-80-n-mm-150-mm-57-mm-21115-24","provider":"Inter-Pace","version":"1.0","type":"link"}