{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"46a25917204e","name":"VALVE SPRING SET CRF250 R/X, KIBBLEWHITE 30-30590 RACING, LIGHTWEIGHT KIT","sku":"65-710","brand":"Kibblewhite","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":191.8,"formatted":"£191.80"},"summary":"Kibblewhite Racing Lightweight Valve Spring Kit. Titanium retainers. Intake/Exhaust. Valve Lift 0.350 inches. Installed Height 1.320 inches. Seat Pressure 50 lbs. Open Pressure 145 lbs @ 0.350 inches lift.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve Spring"},{"label":"Variant Id","value":"264335"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-710/5a7b16c047dfe746.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-710/5a7b16c047dfe746.jpg"],"description":"Kibblewhite Racing Lightweight Valve Spring Kit. Titanium retainers. Intake/Exhaust. Valve Lift 0.350 inches. Installed Height 1.320 inches. Seat Pressure 50 lbs. Open Pressure 145 lbs @ 0.350 inches lift.","descriptionMarkdown":"### Kibblewhite Racing Lightweight Valve Spring Kit\n\n Elevate your engine's performance and durability with the Kibblewhite Racing Lightweight Valve Spring Kit. Designed by KPMI®, a leader in valvetrain innovation since 1939, this kit is engineered to outperform and outlast OEM components in the demanding environment of high-revving four-stroke engines.\n\n KPMI®'s unified system approach ensures each spring kit is precisely tailored for its specific application. This meticulous design process considers critical parameters such as cam profiles, harmonics, spring natural frequency, valvetrain mass, required pressure, wire stress, fatigue life, and engine RPM to deliver optimal results.\n\n#### Key Features:\n\n \n- Type: Intake / Exhaust\n \n- Retainer Material: Titanium\n \n- Valve Lift: 0.350 inches\n \n- Installed Height: 1.320 inches\n \n- Seat Pressure: 50 lbs\n \n- Open Pressure: 145 lbs @ 0.350 inches lift\n \n- Engineered for high-revving four-stroke engines.\n \n- Lightweight design contributes to reduced valvetrain mass.\n \n- Designed to withstand torturous engine conditions.\n \n- Provides superior performance and longevity compared to OEM parts.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2004–2007"},{"make":"HONDA","model":"CRF 250X","cc":null,"notes":null,"years":"2004–2017"}],"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-crf250-rx-kibblewhite-30-30590-racing-lightweight-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/46a25917204e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/46a25917204e: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."]}}