{"product_id":"ohlins-cylinder-head-s46c1-21690-01","title":"Öhlins Cylinder Head S46C1 – 21690-01","description":"\u003cp\u003eCylinder Head S46C1, Öhlins part number 21690-01. A head that has been over-tightened distorts and stops sealing.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21690-01\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\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. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston. The cylinder head closes the working bore and carries the shaft seal and its bushing.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eParts remain available years after a unit leaves the current price list, which is unusual in this trade. An original part keeps the unit within its published specification; a near-equivalent quietly moves it. If you are between two sizes, send us the measurement and we will check it against the catalogue. 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\u003eIf the unit is already open, compare the dimensions below with the part in your hand before ordering 21690-01. This position has no published dimension, so the part number is the only reliable identifier. Length here is the working length, not the overall dimension, which is why two similar tubes are not interchangeable. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eAsk us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.\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 21690-01\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":53652749746442,"sku":"21690-01","price":896.0,"currency_code":"PGK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21690-01_e42670ae-6bf3-4f25-96c7-d9425f295e2d.png?v=1788880098","url":"https:\/\/inter-pace.com\/en-pg\/products\/ohlins-cylinder-head-s46c1-21690-01","provider":"Inter-Pace","version":"1.0","type":"link"}