{"product_id":"muelle-de-contraste-polini-yamaha-t-max-500-530","title":"Yamaha T-Max 500\/530 Polini Clutch Spring","description":"\u003cp\u003e\u003cstrong\u003eSpring 10% harder than the original\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hardness of the contrast spring plays \u003cstrong\u003ean important role\u003c\/strong\u003e in transmitting the engine's power to the rear wheel. \u003cbr\u003eIt exerts \u003cstrong\u003eback pressure on the rear pulleys\u003c\/strong\u003e and therefore has a considerable influence on the operation of the variator. The contrast spring is usually harder if the belt tends to slip, if the variator does not \u003cstrong\u003eoperate at the optimal RPM level\u003c\/strong\u003e, or if the engine, despite light weights, continues to run below the optimal RPM.\u003cbr\u003e What \u003cstrong\u003enegatively affects performance\u003c\/strong\u003e is a twisted contrast spring.\u003c\/p\u003e","brand":"Polini Motori s.p.a.","offers":[{"title":"Default Title","offer_id":54304524370305,"sku":"243.080","price":19.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0860\/6223\/5959\/files\/u243.077_54c453a4-462d-47e6-a427-aea0e3dc3225.jpg?v=1751379277","url":"https:\/\/motoscoot.net\/en\/products\/contrast-spring-polini-yamaha-t-max-500-530","provider":"Motoscoot","version":"1.0","type":"link"}