{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"42f2aeabaf1e","name":"VALVE SPRING SET CRF450X 05-15, KIBBLEWHITE 30-31050 RACING, LIGHTWEIGHT KIT","sku":"65-709","brand":"Kibblewhite","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":177.24,"formatted":"£177.24"},"summary":"Lightweight racing spring kit for high-performance use. Designed for 0.440 inch valve lift, the kit includes chrome silicon valve springs, titanium retainers, and high-tensile steel lower collars. Provides optimal seat pressure and lift characteristics for both intake and exhaust applications, supporting high-revving 4-stroke engines. Features lightweight chrome silicon racing valve springs, titanium retainers for reduced valvetrain mass, and high-tensile steel lower collars. Engineered for 0.440 inch valve lift compatibility and optimised for both intake and exhaust valves. Exhaust specifications: 0.440 inch valve lift, 70 lb seat pressure, 183 lb @ 0.375 inch lift. Intake specifications: 0.440 inch valve lift, 40 lb seat pressure, 130 lb @ 0.375 inch lift. Kibblewhite 30-31050.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve Spring"},{"label":"Variant Id","value":"264334"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-709/916a1ffca9a9811f.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-709/916a1ffca9a9811f.jpg"],"description":"Lightweight racing spring kit for high-performance use. Designed for 0.440 inch valve lift, the kit includes chrome silicon valve springs, titanium retainers, and high-tensile steel lower collars. Provides optimal seat pressure and lift characteristics for both intake and exhaust applications, supporting high-revving 4-stroke engines. Features lightweight chrome silicon racing valve springs, titanium retainers for reduced valvetrain mass, and high-tensile steel lower collars. Engineered for 0.440 inch valve lift compatibility and optimised for both intake and exhaust valves. Exhaust specifications: 0.440 inch valve lift, 70 lb seat pressure, 183 lb @ 0.375 inch lift. Intake specifications: 0.440 inch valve lift, 40 lb seat pressure, 130 lb @ 0.375 inch lift. Kibblewhite 30-31050.","descriptionMarkdown":"### Kibblewhite Racing Lightweight Valve Spring Kit for CRF450X\n\nEnhance the performance of your Honda CRF450X with this premium, lightweight racing valve spring kit from Kibblewhite. Engineered for high-performance applications, this kit is designed to support demanding 4-stroke engine operation with optimal valve control.\n\nThe Kibblewhite valve spring set is meticulously crafted using high-quality materials to ensure durability and superior performance. It features lightweight chrome silicon racing valve springs, which are crucial for reducing valvetrain inertia, allowing for higher RPMs and improved engine response. Complementing the springs are ultra-lightweight titanium retainers, further minimizing mass at the top of the valvetrain for enhanced reliability and performance.\n\nThis comprehensive kit also includes high-tensile steel lower collars, providing a solid foundation for the spring assembly. It is specifically engineered to be compatible with a 0.440 inch valve lift, offering precision control for both intake and exhaust valves.\n\n**Key Features:**\n\n \n- Lightweight chrome silicon racing valve springs for reduced valvetrain mass.\n \n- Titanium retainers contribute to lower valvetrain inertia.\n \n- Includes high-tensile steel lower collars for robust support.\n \n- Engineered for optimal performance at 0.440 inch valve lift.\n \n- Designed to provide precise control for both intake and exhaust valves.\n\n**Specifications:**\n\n \n- Exhaust Valve Specifications: 0.440\" valve lift, 70 lb seat pressure, 183 lb at 0.375\" lift.\n \n- Intake Valve Specifications: 0.440\" valve lift, 40 lb seat pressure, 130 lb at 0.375\" lift.","weightGrams":null,"fitments":[],"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-crf450x-05-15-kibblewhite-30-31050-racing-lightweight-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/42f2aeabaf1e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/42f2aeabaf1e: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."]}}