{"product_id":"ohlins-shock-spring-115-n-mm-180-mm-57-mm-21103-41","title":"Öhlins Shock Spring 115 N\/mm \/ 180 mm \/ Ø 57 mm – 21103-41","description":"\u003cp\u003eÖhlins part number 21103-41 is a shock absorber spring rated at 115 N\/mm, 180 mm long with a 57 mm inner diameter. The damper can only control the spring it is given; the wrong rate makes every click a compromise.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFree length 180 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21103-41\u003c\/li\u003e\n\u003cli\u003eInner diameter 57 mm\u003c\/li\u003e\n\u003cli\u003eMeasured spring rate 115 N\/mm\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. Every unit is dyno-tested against the curve held for its part number, not sampled from a batch. Service parts stay available for years after a part number leaves the current price list.\u003c\/p\u003e\u003ch2\u003eDimensions\u003c\/h2\u003e\u003cp\u003eThe 57 mm bore and 180 mm length are the two figures that decide whether it physically fits; 115 N\/mm decides whether it suits the rider.\u003c\/p\u003e\u003ch2\u003eChoosing 115 N\/mm\u003c\/h2\u003e\u003cp\u003eThis end of the range suits heavier riders, two-up use, or a machine ridden hard enough that fork dive becomes the limit. Firm rates trade some small-bump comfort for support — the right trade on a good surface at speed. Support under braking improves; small-bump comfort gives a little back. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.\u003c\/p\u003e\u003ch2\u003eRate and the Linkage\u003c\/h2\u003e\u003cp\u003eThe rear spring carries the rider, the pillion and the luggage; the front carries only part of it. 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. Progressive springs change rate through the stroke, which suits machines with little travel and a lot of load.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eA workshop will pick this spring from its dimensions and the rider's weight, not from a fitment table. If you are replacing a sagged original, measure its free length first — a tired spring often measures several millimetres short. Öhlins offers rates in defined steps so a change can be made in one direction at a time rather than by guesswork.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eÖhlins part numbers are stamped on the packaging rather than the spring, so keep the label with the setup notes. If the fork has not been serviced recently, bushes and seals are worth replacing while it is apart. Work on both legs in one session so the fork stays symmetrical.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eRoad approval: springs are not separately type-approved in Germany because they substitute a part that is already homologated with the fork. Model-specific documents, where they exist, are named above.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eÖhlins components deliver what they promise once they are fitted and set up properly. As an authorised Öhlins service centre we do exactly that in house — installation, service and setup. Simply ask if you would like us to take care of it.\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 21103-41\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSpring Rate:\u003c\/em\u003e 115 N\/mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFree Length:\u003c\/em\u003e 180 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 57 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":53645412991242,"sku":"21103-41","price":324000.0,"currency_code":"CDF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/RearOhlinsSpring_9ec3d743-a591-4bdf-9791-3a02cf55ffcf.png?v=1788866887","url":"https:\/\/inter-pace.com\/en-cd\/products\/ohlins-shock-spring-115-n-mm-180-mm-57-mm-21103-41","provider":"Inter-Pace","version":"1.0","type":"link"}