{"product_id":"ohlins-fork-leg-outer-43-50-54-488-21630-18","title":"Öhlins Fork leg outer 43\/50\/54\/488 – 21630-18","description":"\u003cp\u003eFork leg outer 43\/50\/54\/488, Öhlins part number 21630-18. Öhlins fork parts are specific to the fork model, not interchangeable across the range.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimension A 43 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21630-18\u003c\/li\u003e\n\u003cli\u003eDimension C 54 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension B 50 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eÖhlins publishes 43 mm, 50 mm, 54 mm for 21630-18 — the dimensions are the identity of the part. A marked inner tube destroys seals repeatedly until it is replaced. Öhlins publishes tube diameters by fork model, and they are not interchangeable across the range. Fork tubes are the structural part of the front end and carry the braking load into the yokes.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eThe part is identical to what Öhlins fits in production — same supplier, same specification. Öhlins supports its suspension with individual service parts, which is why a fifteen-year-old damper can still be rebuilt to specification. Service parts are ordered per piece unless stated otherwise. Öhlins parts are unit-specific: a close dimension is not a substitute.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003e21630-18 is the Öhlins number for this position — the same one printed in the service documentation. The published dimensions are dimension a 43 mm, dimension b 50 mm, dimension c 54 mm — measure the old part against them if you are unsure. Fork tubes are the structural part of the front end and carry the braking load into the yokes. Inner tubes are coated because they run in bushings and seals for their whole life.\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 21630-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Fork Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 43 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension C:\u003c\/em\u003e 54 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":53652630962442,"sku":"21630-18","price":473.0,"currency_code":"BBD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21630-18_f7b9a660-1835-4b8f-8cfa-8985640825e6.png?v=1788879760","url":"https:\/\/inter-pace.com\/en-bb\/products\/ohlins-fork-leg-outer-43-50-54-488-21630-18","provider":"Inter-Pace","version":"1.0","type":"link"}