{"product_id":"ohlins-piston-holder-2-5-m8x0-75-54-5-01654-15","title":"Öhlins Piston holder 2.5\/M8x0.75\/54.5 – 01654-15","description":"\u003cp\u003ePiston holder 2.5\/M8x0.75\/54.5, Öhlins part number 01654-15. Öhlins machines its pistons rather than sintering them, which is why the port edges stay sharp.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimension A 0.75 mm\u003c\/li\u003e\n\u003cli\u003eThread M8x0.75\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 01654-15\u003c\/li\u003e\n\u003cli\u003eDimension B 54.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Is\u003c\/h2\u003e\u003cp\u003eDimensionally this is 0.75 mm, 54.5 mm, which is how it is told apart from the rest of the range. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does. Replacing a piston is a workshop job because the shim stack has to be rebuilt in the correct order. Valves and needles set the adjustable part of the damping; the piston sets the rest.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eA damper that can be rebuilt is a damper that stays on the bike; that is the whole argument for original service parts. Öhlins manufactures service parts on the same lines as production parts — there is no second quality. Order by part number. The dimensions below are the ones Öhlins publishes for it. Service parts are ordered per piece unless stated otherwise.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eThe reliable route is the exploded drawing: find the position, read the number, order it — 01654-15 in this case. Öhlins states dimension a 0.75 mm, dimension b 54.5 mm for this number, and those figures are the deciding ones. A worn piston band lets oil past the outside of the piston, which shows up as damping that has gone soft. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable.\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 01654-15\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Piston Holders\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 0.75 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 54.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eThread:\u003c\/em\u003e M8x0.75\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":53649132781834,"sku":"01654-15","price":50.34,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01654-15_de4eed7b-a759-4156-8ada-85f406e21f83.png?v=1788873904","url":"https:\/\/inter-pace.com\/en-ch\/products\/ohlins-piston-holder-2-5-m8x0-75-54-5-01654-15","provider":"Inter-Pace","version":"1.0","type":"link"}