{"product_id":"ohlins-piston-band-soft-6-2-30-21018-21","title":"Öhlins Piston band soft 6.2\/30 – 21018-21","description":"\u003cp\u003ePiston band soft 6.2\/30, Öhlins part number 21018-21. Port area sets how much oil can pass before the shims begin to lift.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimension B 30 mm\u003c\/li\u003e\n\u003cli\u003eDimension A 6.2 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21018-21\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003e6.2 mm, 30 mm: that is the whole specification, and it has to match what came out. A scored piston face means oil bypasses the shims entirely. Valves and needles set the adjustable part of the damping; the piston sets the rest. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eThe alternative to a service part is usually a new damper, which is why this catalogue exists. The part number is the contract: it defines material, dimension and finish together. Service parts are supplied per piece unless the description says otherwise. We can check the number against the Öhlins exploded view before you order — just ask.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003e21018-21 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins states dimension a 6.2 mm, dimension b 30 mm for this number, and those figures are the deciding ones. Twin-tube pistons have separate paths for compression and rebound, which is the whole point of the design. A scored piston face means oil bypasses the shims entirely.\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 21018-21\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Piston Bands\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 6.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 30 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":53649966399754,"sku":"21018-21","price":581.0,"currency_code":"MUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21018-21_42a925a9-53f4-4961-8792-c12eb919bfd9.png?v=1788876877","url":"https:\/\/inter-pace.com\/en-mu\/products\/ohlins-piston-band-soft-6-2-30-21018-21","provider":"Inter-Pace","version":"1.0","type":"link"}