{"product_id":"ohlins-check-valve-shim-0-25-21045-01","title":"Öhlins Check valve shim 0.25 – 21045-01","description":"\u003cp\u003eCheck valve shim 0.25, Öhlins part number 21045-01. A check valve lets oil refill the working chamber without passing the shim stack.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 21045-01\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eThis position is identified by its number rather than by a dimension. A scored piston face means oil bypasses the shims entirely. The seat face has to be flat enough for the first shim to seal against it. Rebuilding a piston means keeping the shim order, because the stack is the tuning.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eRebuilding to specification only works if the parts are to specification — that starts here. This is an original Öhlins part, not an aftermarket equivalent — the tolerances are the ones the unit was assembled to. Tell us the damper's model designation and year and we will match the number for you. Send us the model and serial number of your unit and we will confirm the position before you order.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003e21045-01 is the Öhlins number for this position — the same one printed in the service documentation. Where no measurement is given, the drawing position is what identifies the part. Öhlins uses a piston band rather than metal-to-metal contact, which is what keeps the bore intact. Öhlins uses a light spring so the valve reacts to shaft speed rather than to pressure alone.\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 21045-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Check Valves\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":53652495139082,"sku":"21045-01","price":1.71,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21045-01_682a54c1-c1e7-4ec5-8752-6a074901a480.png?v=1788879422","url":"https:\/\/inter-pace.com\/en-va\/products\/ohlins-check-valve-shim-0-25-21045-01","provider":"Inter-Pace","version":"1.0","type":"link"}