{"product_id":"ohlins-shock-spring-71-n-mm-115-mm-55-mm-66388-01","title":"Öhlins Shock Spring 71 N\/mm \/ 115 mm \/ Ø 55 mm – 66388-01","description":"\u003cp\u003eÖhlins part number 66388-01 is a shock absorber spring rated at 71 N\/mm, 115 mm long with a 55 mm inner diameter. A rear spring matched to rider and load keeps the chassis attitude where the factory intended it.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 66388-01\u003c\/li\u003e\n\u003cli\u003ePowder-coated black\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 71 N\/mm\u003c\/li\u003e\n\u003cli\u003eInner diameter 55 mm\u003c\/li\u003e\n\u003cli\u003eFree length 115 mm\u003c\/li\u003e\n\u003cli\u003e71 mm of usable stroke\u003c\/li\u003e\n\u003cli\u003eTapered-wound, constant rate\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManufacture and Tolerance\u003c\/h2\u003e\u003cp\u003eAnodising is hard-coat rather than decorative, which matters on a component exposed to road salt and stone chips. Each spring is set before it is measured, so it will not settle and lose rate in service. Öhlins manufactures in Upplands Väsby, north of Stockholm, and assembles and tests every unit there before it ships.\u003c\/p\u003e\u003ch2\u003eSize and Rate\u003c\/h2\u003e\u003cp\u003eAt 115 mm free length and 55 mm inner diameter, this spring is dimensionally interchangeable with anything of the same size — the rate is what makes it a different part.\u003c\/p\u003e\u003ch2\u003eWhere This Rate Belongs\u003c\/h2\u003e\u003cp\u003eFirm rates trade some small-bump comfort for support — the right trade on a good surface at speed. This end of the range suits heavier riders, two-up use, or a machine ridden hard enough that fork dive becomes the limit. Heavier riders, two-up use and track days all push the choice towards this end. Road surfaces are the hardest test of a spring rate, because the fork has to cope with both a smooth stretch and a broken one.\u003c\/p\u003e\u003ch2\u003eWhat the Rear Spring Decides\u003c\/h2\u003e\u003cp\u003eA shock absorber spring carries the whole rear of the machine through a linkage that multiplies its rate several times over — which is why the number on the spring looks so much larger than a fork rate. A rear spring is the cheapest part of the suspension and the one that decides the most. Rear spring rates run in the tens or hundreds of N\/mm because the spring sits at the short end of that lever, not at the wheel.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eÖhlins builds springs to dimensions rather than to model lists, so the question is always the same: does the diameter fit, does the length fit, and is the rate right for the rider? This is a service part in the proper sense — it wears, it settles, and replacing it restores what the suspension was designed to do. Rate is the variable that depends on the rider, not on the machine. Two people on the same bike may well want two different numbers.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eBoth legs are done together, and both take the same rate. The springs come powder-coated and need no preparation before they go in. The fork legs come off, the springs are swapped and the oil level is reset — half a day in most workshops.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: a spring is a like-for-like replacement of a wear part and carries no separate type approval. Where Öhlins states an approval for a particular motorcycle, it is named under Applications.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eWe are an authorised Öhlins service centre, so the installation does not have to be your problem: we fit and set up Öhlins components in our own workshop. Ask us when you order and we will include the work.\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 66388-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 71 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 115 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 55 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStroke:\u003c\/em\u003e 71 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eConstruction:\u003c\/em\u003e Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFinish:\u003c\/em\u003e Powder-coated black\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":53645455196426,"sku":"66388-01","price":303000.0,"currency_code":"UGX","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_922985f1-2265-49e0-9e56-1eef34251241.png?v=1788867005","url":"https:\/\/inter-pace.com\/en-ug\/products\/ohlins-shock-spring-71-n-mm-115-mm-55-mm-66388-01","provider":"Inter-Pace","version":"1.0","type":"link"}