{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"89b60841b142","name":"VALVE SPRING SET KLX/KFX400, KIBBLEWHITE 40-40148 RACING, Kawasaki KLX / KFX 400 2001-2006, SUZUKI DRZ / LTZ 400 2000 - 2007","sku":"65-716","brand":"Kibblewhite","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":216.62,"formatted":"£216.62"},"summary":"Racing valve spring kit with titanium retainers and H.T. steel lower collars. Designed for high lift applications up to 0.440 inches. Features chrome silicon valve spring wire. Specifications include 60 lb. seat pressure and 175 lb. at 0.440 lift. Kibblewhite part number 40-40148.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve Spring"},{"label":"Variant Id","value":"264341"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-716/a5dd66dcfa6db92c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-716/a5dd66dcfa6db92c.jpg"],"description":"Racing valve spring kit with titanium retainers and H.T. steel lower collars. Designed for high lift applications up to 0.440 inches. Features chrome silicon valve spring wire. Specifications include 60 lb. seat pressure and 175 lb. at 0.440 lift. Kibblewhite part number 40-40148.","descriptionMarkdown":"### Kibblewhite Racing Valve Spring Set\n\nThis racing valve spring set from Kibblewhite is engineered for high-performance applications, utilizing a system approach to ensure optimal compatibility and reliability. Each component is meticulously designed to work harmoniously with the others, forming a complete valvetrain system.\n\nUtilizing proprietary design and simulation software, combined with over 70 years of engineering experience, Kibblewhite creates valve spring systems that precisely match valve spring force and natural frequency to the cam profile, valvetrain mass, engine harmonics, and RPM.\n\nThe manufacturing partners are ISO certified U.S. based companies. The Super-Clean Chrome Silicon valve spring wire is sourced from Kobe, Japan, renowned for producing some of the world's finest spring wire.\n\n#### Key Features:\n\n \n- Designed for high-lift applications up to 0.440 inches.\n \n- Manufactured with Chrome Silicon valve springs.\n \n- Includes Titanium retainers.\n \n- Features High Tensile (H.T.) Steel lower collars.\n \n- 60 lbs seat pressure.\n \n- 175 lbs pressure at 0.440 lift.\n \n- System-designed for optimal valvetrain performance.\n \n- Engineered for compatibility with cam profiles, valvetrain mass, and engine RPM.\n \n- ISO certified manufacturing partners.\n \n- High-quality chrome silicon spring wire.\n\n**Note:** This part is intended for off-road use only.","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KLX 400","cc":null,"notes":null,"years":"2001–2006"}],"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-klxkfx400-kibblewhite-40-40148-racing-kawasaki-klx-kfx-400-2001","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/89b60841b142:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/89b60841b142:1"}},"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."]}}