{"product_id":"ohlins-oil-lock-piston-21-5-21753-01","title":"Öhlins Oil lock piston 21.5 – 21753-01","description":"\u003cp\u003eOil lock piston 21.5, Öhlins part number 21753-01. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 21753-01\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eThis position is identified by its number rather than by a dimension. The piston carries the shim stacks and meters the oil through its ports. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable. 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\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eThe tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. For a full rebuild, the seal kit plus the wear parts is usually the sensible order. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eÖhlins identifies this position by the number 21753-01 in the exploded view for the unit it belongs to. This position has no published dimension, so the part number is the only reliable identifier. Jets meter fixed bleed flow and are sized in tenths of a millimetre. Port area and seat geometry decide the damping before any adjuster is touched.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eÖhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.\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 21753-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Pistons\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":53651538018570,"sku":"21753-01","price":17400.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21753-01_68e21682-2c6d-4e48-be87-d89ff7f5f3f4.png?v=1788877751","url":"https:\/\/inter-pace.com\/en-lk\/products\/ohlins-oil-lock-piston-21-5-21753-01","provider":"Inter-Pace","version":"1.0","type":"link"}