{"product_id":"ohlins-adaptor-base-valve-m27x1-58-21758-10","title":"Öhlins Adaptor base valve M27x1\/58 – 21758-10","description":"\u003cp\u003eAdaptor base valve M27x1\/58, Öhlins part number 21758-10. A worn valve bleeds damping away without any visible symptom.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimension B 58 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eThread M27x1\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21758-10\u003c\/li\u003e\n\u003cli\u003eDimension A 1 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eThis one measures 1 mm, 58 mm, and those figures are what separate it from the neighbouring numbers. Öhlins uses a piston band rather than metal-to-metal contact, which is what keeps the bore intact. Valves hold pressure in one direction and open in the other. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable.\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. The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Service parts are supplied per piece unless the description says otherwise. If you are between two sizes, send us the measurement and we will check it against the catalogue.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003e21758-10 is the Öhlins number for this position — the same one printed in the service documentation. The published dimensions are dimension a 1 mm, dimension b 58 mm — measure the old part against them if you are unsure. Valves hold pressure in one direction and open in the other. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.\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 21758-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Valves\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 58 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eThread:\u003c\/em\u003e M27x1\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":53652843987210,"sku":"21758-10","price":401000.0,"currency_code":"MNT","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21758-10_46b8a12f-3c93-451a-9619-2ed2c766ddec.png?v=1788880216","url":"https:\/\/inter-pace.com\/en-mn\/products\/ohlins-adaptor-base-valve-m27x1-58-21758-10","provider":"Inter-Pace","version":"1.0","type":"link"}