{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"35bb20b56253","name":"VALVE SPRING SET KX450F 06-08, KIBBLEWHITE 40-40300 RACING, LIGHTWEIGHT RACING","sku":"65-717","brand":"Kibblewhite","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":187.82,"formatted":"£187.82"},"summary":"This Kibblewhite 40-40300 racing valve spring set is designed for the Kawasaki KX450F 2006-2008. It supports valve lifts up to 0.415 inches and features chrome silicon racing valve springs, titanium retainers to reduce valvetrain weight, and high-tensile steel lower collars. This kit is engineered for high-revving four-stroke engines, offering consistent performance and durability. Specifications include a 0.415 inch valve lift capacity, 50 lb seat pressure, and 155 lb at 0.415 inch lift. This set is suitable for both intake and exhaust valve applications.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve Spring"},{"label":"Variant Id","value":"264342"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-717/2447e41c450ed355.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-717/2447e41c450ed355.jpg"],"description":"This Kibblewhite 40-40300 racing valve spring set is designed for the Kawasaki KX450F 2006-2008. It supports valve lifts up to 0.415 inches and features chrome silicon racing valve springs, titanium retainers to reduce valvetrain weight, and high-tensile steel lower collars. This kit is engineered for high-revving four-stroke engines, offering consistent performance and durability. Specifications include a 0.415 inch valve lift capacity, 50 lb seat pressure, and 155 lb at 0.415 inch lift. This set is suitable for both intake and exhaust valve applications.","descriptionMarkdown":"### Kibblewhite Lightweight Racing Valve Spring Set for Kawasaki KX450F\n\nUpgrade your Kawasaki KX450F's valvetrain with this high-performance racing valve spring set from Kibblewhite. Engineered for demanding applications, this kit is designed to support valve lifts up to 0.415 inches, providing enhanced performance and reliability for your high-revving four-stroke engine.\n\n**Key Features:**\n\n \n- Chrome silicon racing valve springs for superior durability and performance.\n \n- Lightweight titanium retainers significantly reduce valvetrain mass, improving engine response.\n \n- High-tensile steel lower collars ensure a secure and stable spring seat.\n \n- Optimized for valve lifts up to 0.415 inches, accommodating aggressive camshaft profiles.\n \n- Suitable for both intake and exhaust valve applications.\n\n**Specifications:**\n\n \n- Maximum Valve Lift: 0.415 inches\n \n- Seat Pressure: 50 lb\n \n- Open Pressure at 0.415 inch lift: 155 lb\n\nThis valve spring set is a direct replacement for specific Kawasaki KX450F models, offering a significant upgrade in performance and strength compared to stock components.","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KLX F 450","cc":null,"notes":null,"years":"2006–2008"}],"collections":[{"name":"Cam & Valvetrain","url":"https://www.2brosparts.com/api/agent/collection/GB/cam-valvetrain"},{"name":"Valve Spring","url":"https://www.2brosparts.com/api/agent/collection/GB/valve-spring"}],"links":{"page":"https://www.2brosparts.com/products/valve-spring-set-kx450f-06-08-kibblewhite-40-40300-racing-lightweight-racing","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/35bb20b56253:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/35bb20b56253:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}