{"product_id":"ohlins-cylinder-head-46-20570-02","title":"Öhlins Cylinder head 46 – 20570-02","description":"\u003cp\u003eCylinder head 46, Öhlins part number 20570-02. A head that has been over-tightened distorts and stops sealing.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 20570-02\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eÖhlins publishes no separate dimension for this position, so the part number carries the identity. A tube that has been bottomed hard often shows a ring mark; that is a reason to replace it. A scored bore means lost damping, because the oil bypasses the piston rather than being forced through the shims. Öhlins hones its tubes to a defined surface finish rather than simply to a diameter.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eThe alternative to a service part is usually a new damper, which is why this catalogue exists. Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. The exploded drawing for your unit names the number; if you do not have it, we do.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eÖhlins identifies this position by the number 20570-02 in the exploded view for the unit it belongs to. Where no measurement is given, the drawing position is what identifies the part. The cylinder tube is the working bore of the damper: the piston runs in it, and its finish decides how well the piston rings seal. The cylinder head closes the working bore and carries the shaft seal and its bushing.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eIf you would rather not open the damper yourself, we can do it — we are an authorised Öhlins service centre and rebuild these units as a matter of routine.\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 20570-02\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Cylinder Heads\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":53652447002890,"sku":"20570-02","price":128.02,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/20570-02_9b4d3e09-c5b1-4f04-b2b7-66395128cefc.png?v=1788879183","url":"https:\/\/inter-pace.com\/products\/ohlins-cylinder-head-46-20570-02","provider":"Inter-Pace","version":"1.0","type":"link"}