{"product_id":"ohlins-adaptor-base-valve-m12x1-25-32-21758-03","title":"Öhlins Adaptor base valve M12x1.25\/32 – 21758-03","description":"\u003cp\u003eAdaptor base valve M12x1.25\/32, Öhlins part number 21758-03. 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\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension B 32 mm\u003c\/li\u003e\n\u003cli\u003eDimension A 1.25 mm\u003c\/li\u003e\n\u003cli\u003eThread M12x1.25\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21758-03\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003e21758-03 is the 1.25 mm, 32 mm version — Öhlins lists each size separately. Öhlins machines its pistons rather than sintering them, which is why the port edges stay sharp. Replacing a piston is a workshop job because the shim stack has to be rebuilt in the correct order. A worn valve bleeds damping away without any visible symptom.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eÖhlins keeps service parts available for units long after they leave the current price list. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. Service parts are supplied per piece unless the description says 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\u003eOrder under 21758-03. Where several sizes share a description, only the number separates them. Öhlins states dimension a 1.25 mm, dimension b 32 mm for this number, and those figures are the deciding ones. Jets meter fixed bleed flow and are sized in tenths of a millimetre. Valves hold pressure in one direction and open in the other.\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 21758-03\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 1.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 32 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eThread:\u003c\/em\u003e M12x1.25\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":53651580289290,"sku":"21758-03","price":78.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21758-03_b0574376-41bf-402f-b1b8-aafe270a7e9f.png?v=1788877776","url":"https:\/\/inter-pace.com\/en-sr\/products\/ohlins-adaptor-base-valve-m12x1-25-32-21758-03","provider":"Inter-Pace","version":"1.0","type":"link"}