{"product_id":"ohlins-o-ring-29-1x1-6-nbr-90-00438-66","title":"Öhlins O-ring 29.1x1.6 NBR 90 – 00438-66","description":"\u003cp\u003eO-ring 29.1x1.6 NBR 90, Öhlins part number 00438-66. O-rings are single-use in a pressurised damper — they are replaced whenever the unit is opened.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMaterial NBR 90\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eCross Section 1.6 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00438-66\u003c\/li\u003e\n\u003cli\u003eInner Diameter 29.1 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eAt 29.1 mm, 1.6 mm, NBR 90 it fits one position only; the next size up carries a different number. Seals harden with heat and age even when the machine has not been ridden much. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eThis is an original Öhlins part, not an aftermarket equivalent — the tolerances are the ones the unit was assembled to. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. The Öhlins exploded view names the number for each position; we can look it up if you do not have it. If you are between two sizes, send us the measurement and we will check it against the catalogue.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003ePart number 00438-66 is unambiguous; the description alone is not, because Öhlins uses similar wording across sizes. Check inner diameter 29.1 mm, cross section 1.6 mm, material NBR 90 against what you have removed; a close size is not the same part. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.\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 00438-66\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e O-Rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 29.1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 1.6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eMaterial:\u003c\/em\u003e NBR 90\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":53646902395146,"sku":"00438-66","price":100.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00438-66_d7d8ec55-9a21-42e2-bc68-36945c9505fb.png?v=1788869428","url":"https:\/\/inter-pace.com\/en-ph\/products\/ohlins-o-ring-29-1x1-6-nbr-90-00438-66","provider":"Inter-Pace","version":"1.0","type":"link"}