{"product_id":"ohlins-top-out-spring-8-17-1500n-21031-30","title":"Öhlins Top out spring 8\/17\/1500N – 21031-30","description":"\u003cp\u003eTop out spring 8\/17\/1500N, Öhlins part number 21031-30. Free length and inner diameter decide fit; the rate decides behaviour.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension C 1500 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21031-30\u003c\/li\u003e\n\u003cli\u003eDimension B 17 mm\u003c\/li\u003e\n\u003cli\u003eDimension A 8 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eThis one measures 8 mm, 17 mm, 1500 mm, and those figures are what separate it from the neighbouring numbers. Öhlins measures each spring after setting rather than relying on the winding specification. A spring that has settled in service sits shorter than new and quietly lowers the ride height. Rate is chosen for rider weight and load, not for the machine alone.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eÖhlins publishes dimensions for its service parts so a workshop can verify before it fits. The alternative to a service part is usually a new damper, which is why this catalogue exists. If the unit is already apart, compare the published dimensions with the part in your hand. Where a number has been superseded, Öhlins states the replacement — we pass that on.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003eIf the unit is already open, compare the dimensions below with the part in your hand before ordering 21031-30. Check dimension a 8 mm, dimension b 17 mm, dimension c 1500 mm against what you have removed; a close size is not the same part. Rate is chosen for rider weight and load, not for the machine alone. A settled spring lowers the machine and steepens the steering without anyone changing a setting.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eA damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with 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 21031-30\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 17 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension C:\u003c\/em\u003e 1500 mm\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":53652485243146,"sku":"21031-30","price":20.0,"currency_code":"BSD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21031-30_8bea2993-8a89-4647-a1ee-6b6fb5535977.png?v=1788879368","url":"https:\/\/inter-pace.com\/en-bs\/products\/ohlins-top-out-spring-8-17-1500n-21031-30","provider":"Inter-Pace","version":"1.0","type":"link"}