{"product_id":"ohlins-cylinder-tube-30-34-270-reb-21930-02","title":"Öhlins Cylinder tube 30\/34\/270 reb – 21930-02","description":"\u003cp\u003eCylinder tube 30\/34\/270 reb, Öhlins part number 21930-02. The cylinder tube is the working bore of the damper: the piston runs in it, and its finish decides how well the piston rings seal.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDiameter 30 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21930-02\u003c\/li\u003e\n\u003cli\u003eLength 34 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eÖhlins publishes 30 mm, 34 mm for 21930-02 — the dimensions are the identity of the part. Öhlins hones its tubes to a defined surface finish rather than simply to a diameter. Reservoir tubes carry the gas charge and are built to the same standard as the working cylinder. A tube that has been bottomed hard often shows a ring mark; that is a reason to replace it.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eÖhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. The alternative to a service part is usually a new damper, which is why this catalogue exists. If you are between two sizes, send us the measurement and we will check it against the catalogue. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eÖhlins identifies this position by the number 21930-02 in the exploded view for the unit it belongs to. diameter 30 mm, length 34 mm is what distinguishes this number from its neighbours in the range. Aluminium tubes are hard-anodised in the bore so the piston band has a hard surface to run against. Öhlins hones its tubes to a defined surface finish rather than simply to a diameter.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eWe are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.\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 21930-02\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 30 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 34 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":53652098253066,"sku":"21930-02","price":122.83,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21930-02_15572919-1a6f-4f17-ac4d-caa0e1293ff0.png?v=1788878072","url":"https:\/\/inter-pace.com\/products\/ohlins-cylinder-tube-30-34-270-reb-21930-02","provider":"Inter-Pace","version":"1.0","type":"link"}