{"product_id":"ohlins-fork-bottom-fl-936-left-21664-31","title":"Öhlins Fork bottom FL 936 left – 21664-31","description":"\u003cp\u003eFork bottom FL 936 left, Öhlins part number 21664-31. A marked inner tube destroys seals repeatedly until it is replaced.\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 21664-31\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eThere is no measurement to check here — the number and the exploded view identify it. Inner tubes are coated because they run in bushings and seals for their whole life. The fork bottom carries the axle and takes the braking load into the fork. Top caps carry the adjusters and the preload mechanism.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eParts remain available years after a unit leaves the current price list, which is unusual in this trade. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. If you are between two sizes, send us the measurement and we will check it against the catalogue. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003e21664-31 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins does not publish a dimension here — go by the number and the exploded view. Öhlins publishes tube diameters by fork model, and they are not interchangeable across the range. Öhlins machines the axle clamp so it grips without pulling the fork out of alignment.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eFitting service parts means opening a pressurised unit. As an authorised Öhlins service centre we do that here, with the right tools and a dyno check afterwards — just ask.\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 21664-31\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Fork Bottoms\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":53652721729802,"sku":"21664-31","price":4195000.0,"currency_code":"PYG","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21664-31_9fd3e7fb-297b-4689-9326-9cf9e95b6211.png?v=1788880007","url":"https:\/\/inter-pace.com\/en-py\/products\/ohlins-fork-bottom-fl-936-left-21664-31","provider":"Inter-Pace","version":"1.0","type":"link"}