{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"884e92a6f1d3","name":"VALVE SPRING SET CRF250R 08-09, KIBBLEWHITE 30-31150 RACING, LIGHTWEIGHT KIT","sku":"65-712","brand":"Kibblewhite","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":228.67,"formatted":"£228.67"},"summary":"Lightweight racing valve spring kit. Includes chrome silicon springs, titanium retainers, H.T. steel lower collars, and seals. Compatible with 350 valve lift. Intake specs: 0.350 valve lift OK, 50 lb. seat pressure, 145 lb. @ .350 lift. Exhaust specs: 0.350 valve lift OK, 50 lb. seat pressure, 145 lb. @ .350 lift. KPMI designs valve spring kits as a complete system, ensuring compatibility of spring force and natural frequency with cam profile, valvetrain mass, system harmonics, and engine RPM. Uses Super-Clean Chrome Silicon valve spring wire. Manufacturer: Kibblewhite. Part number: 30-31150.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve Spring"},{"label":"Variant Id","value":"264337"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-712/417f76cceacccfdd.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-712/417f76cceacccfdd.jpg"],"description":"Lightweight racing valve spring kit. Includes chrome silicon springs, titanium retainers, H.T. steel lower collars, and seals. Compatible with 350 valve lift. Intake specs: 0.350 valve lift OK, 50 lb. seat pressure, 145 lb. @ .350 lift. Exhaust specs: 0.350 valve lift OK, 50 lb. seat pressure, 145 lb. @ .350 lift. KPMI designs valve spring kits as a complete system, ensuring compatibility of spring force and natural frequency with cam profile, valvetrain mass, system harmonics, and engine RPM. Uses Super-Clean Chrome Silicon valve spring wire. Manufacturer: Kibblewhite. Part number: 30-31150.","descriptionMarkdown":"### Kibblewhite Racing Lightweight Valve Spring Kit\n\nEnhance your engine's performance with this lightweight racing valve spring kit from Kibblewhite. Engineered for optimal efficiency and durability, this kit is designed to handle demanding off-road conditions.\n\nThis comprehensive system includes high-performance components designed to work seamlessly together, ensuring compatibility with your engine's specific requirements.\n\n#### Key Features:\n\n \n- Lightweight Chrome Silicon Springs: Crafted from premium Super-Clean Chrome Silicon wire for superior strength and reduced mass.\n \n- Titanium Retainers: High-strength, lightweight titanium retainers contribute to overall weight reduction and improved valve train response.\n \n- High Tensile Steel Lower Collars: Durable lower collars made from HT steel provide a solid foundation for the valve spring assembly.\n \n- Designed for 0.350 Valve Lift: Suitable for applications with up to 0.350 inches of valve lift.\n \n- Precise Pressure Ratings: Features 50# seat pressure and 145lb pressure at 0.350 lift for both intake and exhaust valves.\n \n- System Approach: Each component is meticulously designed as part of a complete system, optimized for performance and reliability.\n \n- ISO Certified Manufacturing: Spring manufacturing partners are U.S. based and ISO certified, ensuring the highest quality standards.\n \n- Includes Seals: This kit comes complete with necessary seals for a full installation.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2008–2009"}],"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-crf250r-08-09-kibblewhite-30-31150-racing-lightweight-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/884e92a6f1d3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/884e92a6f1d3:1"}},"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."]}}