{"product_id":"ohlins-piston-ring-prs-20-18x5-411-01447-01","title":"Öhlins Piston ring PRS 20\/18x5-411 – 01447-01","description":"\u003cp\u003ePiston ring PRS 20\/18x5-411, Öhlins part number 01447-01. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 01447-01\u003c\/li\u003e\n\u003cli\u003eDimension B 18 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension A 20 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eThe published figures are 20 mm, 18 mm. Measure the old part against them before ordering. Port area and shim seat geometry decide the damping curve before any adjuster is touched. The seat face has to be flat enough for the first shim to seal against it. Needle geometry sets the shape of the adjustable range, not just its size.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eSuspension is one of the few areas where the original part is genuinely the cheaper decision. Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. Where a number has been superseded, Öhlins states the replacement — we pass that on. Service parts are ordered per piece unless stated otherwise.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eOrder under 01447-01. Where several sizes share a description, only the number separates them. Check dimension a 20 mm, dimension b 18 mm against what you have removed; a close size is not the same part. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does. Bands are consumables and are replaced at every rebuild.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eWe are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.\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 01447-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Piston Bands\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 18 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":53648571957514,"sku":"01447-01","price":17.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01447-01_e1d44304-70c9-4f1a-bf4b-2229235c8df4.png?v=1788871167","url":"https:\/\/inter-pace.com\/en-tr\/products\/ohlins-piston-ring-prs-20-18x5-411-01447-01","provider":"Inter-Pace","version":"1.0","type":"link"}