{"product_id":"ohlins-cylinder-head-0-pg-50-40-10401-50","title":"Öhlins Cylinder head 0° pg 50\/40 – 10401-50","description":"\u003cp\u003eCylinder head 0° pg 50\/40, Öhlins part number 10401-50. The tube carries the end cap threads, so damaged threads mean a new tube rather than a repair.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLength 40 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 10401-50\u003c\/li\u003e\n\u003cli\u003eDiameter 50 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003e10401-50 is the 50 mm, 40 mm version — Öhlins lists each size separately. Length here is the working length, not the overall dimension, which is why two similar tubes are not interchangeable. Wall thickness and bore finish are what let a cylinder hold pressure without deforming under load. Surface finish is specified in microns, because it decides how quickly the piston band wears.\u003c\/p\u003e\u003ch2\u003eOriginal Öhlins Part\u003c\/h2\u003e\u003cp\u003eBuying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. Öhlins supports its suspension with individual service parts, which is why a fifteen-year-old damper can still be rebuilt to specification. For a full rebuild, the seal kit plus the wear parts is usually the sensible order. The exploded drawing for your unit names the number; if you do not have it, we do.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003eThe reliable route is the exploded drawing: find the position, read the number, order it — 10401-50 in this case. Öhlins states diameter 50 mm, length 40 mm for this number, and those figures are the deciding ones. Öhlins matches tube and piston as a pair during assembly, which is why the part numbers are specific. A tube that has been bottomed hard often shows a ring mark; that is a reason to replace it.\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 10401-50\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Cylinder Heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDiameter:\u003c\/em\u003e 50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 40 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":53652209893642,"sku":"10401-50","price":161.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/10401-50_7a3b38b6-e474-4955-b040-c3d529964811.png?v=1788878257","url":"https:\/\/inter-pace.com\/products\/ohlins-cylinder-head-0-pg-50-40-10401-50","provider":"Inter-Pace","version":"1.0","type":"link"}