{"product_id":"ohlins-inner-tube-36-121-al-21005-13","title":"Öhlins Inner tube 36\/121 AL – 21005-13","description":"\u003cp\u003eInner tube 36\/121 AL, Öhlins part number 21005-13. A bent inner tube is scrap — straightening changes the wall and it bends again.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 21005-13\u003c\/li\u003e\n\u003cli\u003eDimension B 121 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension A 36 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eAt 36 mm, 121 mm it fits one position only; the next size up carries a different number. A bent inner tube is scrap — straightening changes the wall and it bends again. Diameter and length identify the tube; both follow the fork model. Fork legs are matched left and right on most Öhlins forks and are listed separately.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eSuspension is one of the few areas where the original part is genuinely the cheaper decision. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. Öhlins parts are unit-specific: a close dimension is not a substitute. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eThe reliable route is the exploded drawing: find the position, read the number, order it — 21005-13 in this case. dimension a 36 mm, dimension b 121 mm is what distinguishes this number from its neighbours in the range. Diameter and length identify the tube; both follow the fork model. Axle clamps and lower legs are machined to hold the axle without distorting the fork.\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 21005-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Inner Tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 36 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 121 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":53652453294346,"sku":"21005-13","price":48.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21005-13_f35fbbe2-1c8e-4061-83b4-9ad39c6498d5.png?v=1788879227","url":"https:\/\/inter-pace.com\/products\/ohlins-inner-tube-36-121-al-21005-13","provider":"Inter-Pace","version":"1.0","type":"link"}