{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d56744a71a6f","name":"Yamaha YZ-F 450 2006-2009 98mm 478cc Big Bore Kit","sku":"CW.21003-K01","brand":"Cylinder Works","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":874.8,"formatted":"£874.80"},"summary":"Cylinder Works Big Bore Kits provide everything needed to transform your bike from modest to monster in one box. Includes a stock-appearing, nickelsilicon carbide, precision honed big bore cylinder kit, all required gaskets, and a Vertex big bore piston complete with rings, pin, and circlips. Bore size is 98mm, displacement is 478cc.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-f-450-2006-2009-98mm-478cc-big-bore-kit-2217-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-f-450-2006-2009-98mm-478cc-big-bore-kit-2217-p.jpg"],"description":"Cylinder Works Big Bore Kits provide everything needed to transform your bike from modest to monster in one box. Includes a stock-appearing, nickelsilicon carbide, precision honed big bore cylinder kit, all required gaskets, and a Vertex big bore piston complete with rings, pin, and circlips. Bore size is 98mm, displacement is 478cc.","descriptionMarkdown":"### Cylinder Works 98mm 478cc Big Bore Kit\n\nTransform your engine performance with the Cylinder Works Big Bore Kit. This comprehensive package is engineered to deliver a significant increase in displacement, effectively taking your engine from stock performance to monster power. Designed for reliability and high-end output, this kit provides everything necessary for a complete top-end upgrade in one convenient box.\n\nThe kit features a precision-honed big bore cylinder that retains a stock appearance while offering superior durability. Each cylinder is finished with a Nickel Silicon Carbide coating to ensure optimal heat dissipation, reduced friction, and an extended service life under demanding riding conditions.\n\n### Key Features\n\n \n- Increased Displacement: Boosts your engine to 478cc with a 98mm bore for enhanced torque and horsepower.\n \n- Complete Assembly: Includes the big bore cylinder, a premium Vertex piston, rings, pin, and circlips.\n \n- Full Gasket Set: Comes with all necessary gaskets required for a professional installation.\n \n- Precision Engineering: The cylinder is precision-honed to exacting tolerances for a perfect fit and reliable performance.\n \n- Nickel Silicon Carbide Plating: Enhances wear resistance and improves thermal management for long-lasting durability.\n \n- Stock Appearance: Designed to maintain the factory look of your machine while providing substantial internal performance gains.\n\nWhether you are looking to revitalize a tired engine or simply seeking a significant power advantage on the track or trail, this Cylinder Works kit delivers professional-grade components that meet the needs of serious riders and racers alike.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-f-450-2006-2009-98mm-478cc-big-bore-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d56744a71a6f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d56744a71a6f: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."]}}