{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e50c689f2edf","name":"YAMAHA YZF 450 2003-2009 WRF 450 2003-2015 97mm 480cc BIG BORE","sku":"V.2964","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":323.92,"formatted":"£323.92"},"summary":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, designed to handle the demands of modern four-stroke engines. Pistons feature a Molybdenum Disulphide (MOS2) coating on the skirt to aid break-in and reduce wear. Unique piston profiles and compression ratios are available in A, B, C, and D sizes, differing by 0.004 inches, for precise cylinder fitment to maximize performance, reduce blow-by, and minimize oil consumption. This is a 97mm 480cc big bore piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-97mm-480cc-big-bore-5055-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-97mm-480cc-big-bore-5055-p.jpg"],"description":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy, designed to handle the demands of modern four-stroke engines. Pistons feature a Molybdenum Disulphide (MOS2) coating on the skirt to aid break-in and reduce wear. Unique piston profiles and compression ratios are available in A, B, C, and D sizes, differing by 0.004 inches, for precise cylinder fitment to maximize performance, reduce blow-by, and minimize oil consumption. This is a 97mm 480cc big bore piston.","descriptionMarkdown":"### Vertex 97mm 480cc Big Bore Piston Kit\n\nUpgrade the power and performance of your engine with this high-performance Vertex Big Bore Piston. Engineered for reliability and increased displacement, this 97mm piston kit is designed to transform your 450cc engine into a 480cc powerhouse.\n\nVertex four-stroke pistons are forged from premium 2618 aluminum alloy. This advanced material selection ensures the structural integrity required to withstand the high pressures and extreme thermal demands of modern high-performance engines.\n\n### Key Features\n\n \n- Advanced Metallurgy: Forged from high-quality 2618 aluminum alloy for maximum strength and durability under load.\n \n- Reduced Friction: Each piston features a specialized Molybdenum Disulphide (MOS2) coating applied to the skirt to facilitate a smoother break-in process and minimize long-term wear.\n \n- Precision Sizing: Vertex offers unique piston profiles and compression ratios to provide an exacting fit. This precision engineering reduces blow-by and oil consumption while effectively maximizing engine power.\n \n- Big Bore Performance: Designed specifically for riders looking to increase displacement to 480cc for enhanced torque and overall output.\n\nWhether you are performing a rebuild or seeking a performance upgrade, Vertex provides the engineering excellence needed to maintain peak engine efficiency and consistent power delivery throughout the rev range.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-97mm-480cc-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e50c689f2edf:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e50c689f2edf: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."]}}