{"product_id":"ohlins-shock-spring-50-n-mm-360-mm-70-mm-10257-09","title":"Öhlins Shock Spring 50 N\/mm \/ 360 mm \/ Ø 70 mm – 10257-09","description":"\u003cp\u003eÖhlins part number 10257-09 is a shock absorber spring rated at 50 N\/mm, 360 mm long with a 70 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\u003eFree length 360 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 10257-09\u003c\/li\u003e\n\u003cli\u003ePowder-coated black\u003c\/li\u003e\n\u003cli\u003eStraight-wound, constant rate\u003c\/li\u003e\n\u003cli\u003e201 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 50 N\/mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 70 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManufacture and Tolerance\u003c\/h2\u003e\u003cp\u003eTwo units carrying the same part number behave the same way out of the box, which is the whole point of testing each one. The wire is progressively wound where the application calls for it and straight where it does not. Machining, anodising, assembly and testing all happen in the same building rather than across a supply chain.\u003c\/p\u003e\u003ch2\u003eSize and Rate\u003c\/h2\u003e\u003cp\u003eThe 70 mm bore and 360 mm length are the two figures that decide whether it physically fits; 50 N\/mm decides whether it suits the rider.\u003c\/p\u003e\u003ch2\u003eWhat This Rate Does\u003c\/h2\u003e\u003cp\u003eIf you are unsure and close to average weight in full kit, this is the sensible starting point. From here it is easy to move one step in either direction once you have ridden it. This is where most riders of average weight land once static sag has been set to specification. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.\u003c\/p\u003e\u003ch2\u003eHow a Rear Spring Works\u003c\/h2\u003e\u003cp\u003eA spring that has settled in service sits shorter than new, which quietly lowers the bike and steepens the steering. On 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. Öhlins sells rear springs separately precisely because rider weight varies more than machine weight does.\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. A spring is one of the few suspension parts that is genuinely interchangeable: same bore, same free length, and it goes in. 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\u003eTorque the fork caps to the manufacturer's figure; the springs change nothing about the assembly torque. Fitting is a fork-oil job: the legs come apart, the springs go in, the oil level is set to specification. Work on both legs in one session so the fork stays symmetrical.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: a spring is a like-for-like replacement of a wear part and carries no separate type approval. Where Öhlins states an approval for a particular motorcycle, it is named under Applications.\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 10257-09\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 50 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 360 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStroke:\u003c\/em\u003e 201 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":53645398507786,"sku":"10257-09","price":91.7,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_2d23d789-e786-4c0a-8343-6ffa9747a262.png?v=1788866830","url":"https:\/\/inter-pace.com\/en-li\/products\/ohlins-shock-spring-50-n-mm-360-mm-70-mm-10257-09","provider":"Inter-Pace","version":"1.0","type":"link"}