{"product_id":"ohlins-piston-8-25-2-compression-01670-04","title":"Öhlins Piston 8\/25\/2 Compression – 01670-04","description":"\u003cp\u003ePiston 8\/25\/2 Compression, Öhlins part number 01670-04. Öhlins uses a piston band rather than metal-to-metal contact, which is what keeps the bore intact.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 01670-04\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eDimension B 25 mm\u003c\/li\u003e\n\u003cli\u003eDimension A 8 mm\u003c\/li\u003e\n\u003cli\u003eDimension C 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eÖhlins gives it as 8 mm, 25 mm, 2 mm; nothing about that is approximate. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable. Rebuilding a piston means keeping the shim order, because the stack is the tuning. Port area sets how much oil can pass before the shims begin to lift.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins 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 supports its suspension with individual service parts, which is why a fifteen-year-old damper can still be rebuilt to specification. If you are unsure which number your unit takes, send us the model and serial number of the damper and we will look it up. 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\u003e01670-04 is the Öhlins number for this position — the same one printed in the service documentation. Check dimension a 8 mm, dimension b 25 mm, dimension c 2 mm against what you have removed; a close size is not the same part. A worn piston band lets oil past the outside of the piston, which shows up as damping that has gone soft. A check valve holds pressure in one direction and opens in the other; a worn one lets damping bleed away.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eAsk us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.\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 01670-04\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Pistons\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension A:\u003c\/em\u003e 8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension B:\u003c\/em\u003e 25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDimension C:\u003c\/em\u003e 2 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":53649137926410,"sku":"01670-04","price":5103000.0,"currency_code":"LBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01670-04_c6c592c4-5aed-4166-a3f3-fd594c40237e.png?v=1788873929","url":"https:\/\/inter-pace.com\/en-lb\/products\/ohlins-piston-8-25-2-compression-01670-04","provider":"Inter-Pace","version":"1.0","type":"link"}