{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a0bee2d85c10","name":"KIT IN VALVE+SPRING CRF450X, PROX 28.SIS1405-2 INTAKE","sku":"65-K154.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":140.5,"formatted":"£140.50"},"summary":"ProX Steel Intake Valve and Spring Kit for Honda CRF450X (2005-2017). This kit includes steel intake valves and specially designed stronger valve springs. The ProX steel valves offer up to three times the lifespan of OEM titanium valves. The kit replaces OEM valves and springs and can be installed using OEM retainers, bases, and valve seats. Part number 28.SIS1405-2. Weight: 172g.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve & Spring Kit"},{"label":"Variant Id","value":"264470"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-K154_2EPX/30267ba84ddbaff1.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-K154_2EPX/30267ba84ddbaff1.jpg"],"description":"ProX Steel Intake Valve and Spring Kit for Honda CRF450X (2005-2017). This kit includes steel intake valves and specially designed stronger valve springs. The ProX steel valves offer up to three times the lifespan of OEM titanium valves. The kit replaces OEM valves and springs and can be installed using OEM retainers, bases, and valve seats. Part number 28.SIS1405-2. Weight: 172g.","descriptionMarkdown":"### ProX Steel Intake Valve and Spring Kit\n\nUpgrade your engine's performance and durability with the ProX Steel Intake Valve and Spring Kit. This kit is designed as a high-quality replacement for your original equipment, offering a significant improvement in lifespan compared to standard titanium valves.\n\nProX is known for its innovative conversion kits, and this steel intake valve set exemplifies their commitment to quality and longevity. The kit includes a robust steel intake valve and specially designed, stronger valve springs. The heavier steel valve requires a stronger spring to ensure optimal performance and prevent valve float.\n\nInstallation is straightforward as this kit is engineered to directly replace OEM valves and springs. You can use your original retainers, bases, and valve seats, making the upgrade process seamless.\n\n#### Key Features:\n\n \n- Extends lifespan up to three times longer than OEM titanium valves.\n \n- Includes a high-quality steel intake valve.\n \n- Comes with specially designed, stronger valve springs to match the heavier valve.\n \n- Direct replacement for OEM valves and springs.\n \n- Utilizes existing OEM retainers, bases, and valve seats.\n \n- Constructed with durable materials for enhanced reliability.","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 450X","cc":null,"notes":null,"years":"2005–2017"}],"collections":[{"name":"Cam & Valvetrain","url":"https://www.2brosparts.com/api/agent/collection/GB/cam-valvetrain"},{"name":"Valve & Spring Kit","url":"https://www.2brosparts.com/api/agent/collection/GB/valve-spring-kit"}],"links":{"page":"https://www.2brosparts.com/products/kit-in-valvespring-crf450x-prox-28sis1405-2-intake","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a0bee2d85c10:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a0bee2d85c10:1"}},"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."]}}