{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"7f3be503cee3","name":"YAMAHA YZF 450 2018 - 2019 WRF 450 2019-2020 BIG BORE 99mm 470cc 12.7:1","sku":"V.4369","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":323.92,"formatted":"£323.92"},"summary":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy. These pistons are designed for the demands of modern four-stroke engines and feature a Molybdenum Disulphide MOS2 coating on the piston skirt to aid in break-in and reduce wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, each differing by 0.004 inches, allowing for precise sizing to the cylinder for optimized power and performance while minimizing blow-by and oil consumption. This specific piston is a big bore 99mm 470cc with a 12.7:1 compression ratio.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2018-2019-wrf-450-2019-2020-big-bore-99mm-470cc-12.7-1-10630-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2018-2019-wrf-450-2019-2020-big-bore-99mm-470cc-12.7-1-10630-p.jpg"],"description":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy. These pistons are designed for the demands of modern four-stroke engines and feature a Molybdenum Disulphide MOS2 coating on the piston skirt to aid in break-in and reduce wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, each differing by 0.004 inches, allowing for precise sizing to the cylinder for optimized power and performance while minimizing blow-by and oil consumption. This specific piston is a big bore 99mm 470cc with a 12.7:1 compression ratio.","descriptionMarkdown":"### Vertex Big Bore Piston Kit 99mm 470cc\n\nUpgrade your engine performance with the Vertex Big Bore Piston Kit. Engineered for riders who demand reliability and power, this 99mm piston increases your displacement to 470cc with a 12.7:1 compression ratio. Vertex is a trusted leader in off-road engine components, and this piston is designed to withstand the high pressures and extreme conditions found in modern high-performance four-stroke engines.\n\n### Key Features\n\n \n- Advanced Alloy Construction: Forged from premium 2618 aluminum alloy for exceptional strength and heat resistance.\n \n- MOS2 Skirt Coating: Features a specialized Molybdenum Disulphide coating to reduce friction, minimize wear, and assist during the initial break-in period.\n \n- Precision Engineering: Designed with unique piston profiles to ensure maximum power output and efficiency.\n \n- Optimized Performance: Engineered to reduce blow-by and oil consumption, helping your engine maintain peak performance for longer.\n \n- Reliable Build: Built to handle the rigors of racing and high-intensity riding, providing a robust upgrade over stock components.\n\nWhether you are performing a rebuild or looking to gain a performance advantage on the track, the Vertex Big Bore Piston offers the durability and precision required to keep your engine running at its best. Each piston is manufactured to tight tolerances to ensure a perfect fitment and maximum engine longevity.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-450-2018-2019-wrf-450-2019-2020-big-bore-99mm-470cc-1271","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/7f3be503cee3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/7f3be503cee3:1"}},"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."]}}