{"product_id":"single-valve-springs-18-30mm-od","title":"Single Valve Springs 18.30mm OD","description":"The Ferrea S10119 is a set of single valve springs engineered for endurance racing applications. Constructed from a special alloy, these springs offer a precise fit with an outside diameter of 18.30mm and an inside diameter of 13.3mm. They provide a seat pressure of 38lbs at 29.5mm and an open pressure of 85lbs at 19.5mm. This set is specifically designed for the 2003-2009 Yamaha YZF450 with a 5-valve engine configuration. These springs may require specific retainers and seat locators, such as the Ferrea Titanium Retainer # E11091 and Ferrea Spring Seat Locator # SL1093, which are sold separately.","brand":"Ferrea","offers":[{"title":"Default Title","offer_id":52688000549176,"sku":"S10119","price":102.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687898903.webp?v=1784888730","url":"https:\/\/store.motormia.co\/products\/single-valve-springs-18-30mm-od","provider":"MOTORMIA","version":"1.0","type":"link"}