{"product_id":"ohlins-dividing-piston-32-15-21660-01","title":"Öhlins Dividing piston 32\/15 – 21660-01","description":"\u003cp\u003eDividing piston 32\/15, Öhlins part number 21660-01. A check valve holds pressure in one direction and opens in the other; a worn one lets damping bleed away.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimension B 15 mm\u003c\/li\u003e\n\u003cli\u003eDimension A 32 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21660-01\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003e21660-01 is the 32 mm, 15 mm version — Öhlins lists each size separately. Öhlins machines its pistons so the port edges stay sharp and the flow predictable. A check valve holds pressure in one direction and opens in the other; a worn one lets damping bleed away. The piston carries the shim stacks and meters the oil through its ports.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eÖhlins supports units that are decades old, which is why the spare parts list runs to thousands of numbers. Parts remain available years after a unit leaves the current price list, which is unusual in this trade. If you are between two sizes, send us the measurement and we will check it against the catalogue. Order by part number — descriptions repeat across sizes, numbers do not.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eOrder under 21660-01. Where several sizes share a description, only the number separates them. dimension a 32 mm, dimension b 15 mm is what distinguishes this number from its neighbours in the range. Port area and shim seat geometry decide the damping curve before any adjuster is touched. Öhlins machines its pistons rather than sintering them, which is why the port edges stay sharp.\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 21660-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 32 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 15 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":53652704887050,"sku":"21660-01","price":26.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21660-01_acd2fcfa-fa09-4df0-ac6f-538ec854016d.png?v=1788879959","url":"https:\/\/inter-pace.com\/en-gi\/products\/ohlins-dividing-piston-32-15-21660-01","provider":"Inter-Pace","version":"1.0","type":"link"}