{"product_id":"ohlins-cylinder-tube-25-28-237-21929-01","title":"Öhlins Cylinder tube 25\/28\/237 – 21929-01","description":"\u003cp\u003eCylinder tube 25\/28\/237, Öhlins part number 21929-01. A scored bore means lost damping, because the oil bypasses the piston rather than being forced through the shims.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eLength 28 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21929-01\u003c\/li\u003e\n\u003cli\u003eDiameter 25 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eÖhlins gives it as 25 mm, 28 mm; nothing about that is approximate. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston. Öhlins matches tube and piston as a pair during assembly, which is why the part numbers are specific. The cylinder tube is the working bore: the piston runs inside it and every damping force is reacted by its wall.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eEvery part in this catalogue is one Öhlins fits itself during assembly and service. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. Öhlins parts are unit-specific: a close dimension is not a substitute. The Öhlins exploded view names the number for each position; we can look it up if you do not have it.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eÖhlins identifies this position by the number 21929-01 in the exploded view for the unit it belongs to. Öhlins states diameter 25 mm, length 28 mm for this number, and those figures are the deciding ones. The tube is what the whole damper is built around: everything else references its bore. Öhlins gives the tube its diameter and its working length as a pair — a tube of the same bore but different length belongs to a different unit.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eA damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.\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 21929-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Cylinder Tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDiameter:\u003c\/em\u003e 25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 28 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":53653062091018,"sku":"21929-01","price":7000.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21929-01_173a3dad-6db3-4e34-8ef1-ad858723f757.png?v=1788880499","url":"https:\/\/inter-pace.com\/en-ph\/products\/ohlins-cylinder-tube-25-28-237-21929-01","provider":"Inter-Pace","version":"1.0","type":"link"}