{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"cbe9a59eb21c","name":"KIT IN VALVE+SPRING YZF450, PROX 28.SIS2444-2 INTAKE","sku":"65-K160.PX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":156.04,"formatted":"£156.04"},"summary":"Prox Steel INTAKE Valve/Spring Kit. This kit contains steel intake valves and specially designed stronger valve springs. The ProX titanium into steel conversion extends lifespan compared to OEM titanium valves. The kit replaces OEM valves and valve springs and can be installed using OEM retainers, bases, and valve seats. SKU 65-K160.PX. Part number 28.SIS2444-2.","attributes":[{"label":"General Product Group","value":"Cam & Valvetrain"},{"label":"General Product Type","value":"Valve & Spring Kit"},{"label":"Variant Id","value":"264476"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-K160_2EPX/f3b5baad426f21c6.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/65-K160_2EPX/f3b5baad426f21c6.jpg"],"description":"Prox Steel INTAKE Valve/Spring Kit. This kit contains steel intake valves and specially designed stronger valve springs. The ProX titanium into steel conversion extends lifespan compared to OEM titanium valves. The kit replaces OEM valves and valve springs and can be installed using OEM retainers, bases, and valve seats. SKU 65-K160.PX. Part number 28.SIS2444-2.","descriptionMarkdown":"### ProX Steel Intake Valve and Spring Kit for Yamaha YZ450F\n\nUpgrade your engine's performance and durability with the ProX Steel Intake Valve and Spring Kit. This kit is designed to replace OEM titanium valves and offers a significant increase in lifespan, lasting up to three times longer.\n\nEngineered for direct replacement, this kit includes high-quality steel intake valves and specially designed, stronger valve springs. The increased weight of the steel valve necessitates a heavier spring to ensure optimal performance and longevity. You can utilize your OEM retainers, bases, and valve seats for a straightforward installation.\n\n#### Key Features:\n\n \n- Durable steel intake valves for extended lifespan\n \n- Stronger, custom-designed valve springs to accommodate steel valve weight\n \n- Direct replacement for OEM valves and springs\n \n- Utilizes existing OEM retainers, bases, and valve seats\n \n- Designed to outperform and outlast standard titanium valves","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2016–2018"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2014–2017"},{"make":"YAMAHA","model":"YZ 450FX","cc":null,"notes":null,"years":"2016–2020"}],"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-yzf450-prox-28sis2444-2-intake","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/cbe9a59eb21c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/cbe9a59eb21c: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."]}}