{"product_id":"ohlins-shaft-12-543-alu-21637-06","title":"Öhlins Shaft 12\/543 Alu – 21637-06","description":"\u003cp\u003eShaft 12\/543 Alu, Öhlins part number 21637-06. Shafts are not shortened or extended; the length is the specification.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDiameter 12 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21637-06\u003c\/li\u003e\n\u003cli\u003eLength 543 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eDimensionally this is 12 mm, 543 mm, which is how it is told apart from the rest of the range. The shaft is threaded at both ends: piston at one, mounting at the other. Surface hardness is what lets the shaft survive thousands of cycles through a seal. Chrome or nitride treatment is what lets the shaft run in a seal for thousands of kilometres.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eAn original part keeps the unit within its published specification; a near-equivalent quietly moves it. Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. We can supply the whole position from the drawing rather than the single piece if that is easier. If you are between two sizes, send us the measurement and we will check it against the catalogue.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eIf the unit is already open, compare the dimensions below with the part in your hand before ordering 21637-06. The published dimensions are diameter 12 mm, length 543 mm — measure the old part against them if you are unsure. Öhlins offers shafts in several lengths per diameter because the stroke differs by model. Shaft diameter sets the displaced volume, which is why it is part of the damper's specification.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eÖhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.\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 21637-06\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Damper Shafts\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDiameter:\u003c\/em\u003e 12 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 543 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":53652640792842,"sku":"21637-06","price":155.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21637-06_d520a5ed-3703-4d04-8d1f-30ff046376b5.png?v=1788879801","url":"https:\/\/inter-pace.com\/products\/ohlins-shaft-12-543-alu-21637-06","provider":"Inter-Pace","version":"1.0","type":"link"}