{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"7bd118529e3f","name":"YAMAHA YZF 450 2003-2009 WRF 450 2003-2015 100mm 500cc BIG BORE","sku":"V.3270.500","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":323.92,"formatted":"£323.92"},"summary":"Vertex pistons are forged from 2618 aluminum alloy, designed for high pressure four-stroke engines. Each piston features a Molybdenum Disulphide MOS2 coating on the piston skirt to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes. This sizing variation of 0.004 inches allows for a precise fit to the cylinder, maximizing power and performance while reducing blow-by and oil consumption. This is a 100mm 500cc Big Bore piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-100mm-500cc-big-bore-5057-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-100mm-500cc-big-bore-5057-p.jpg"],"description":"Vertex pistons are forged from 2618 aluminum alloy, designed for high pressure four-stroke engines. Each piston features a Molybdenum Disulphide MOS2 coating on the piston skirt to aid break-in and reduce wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes. This sizing variation of 0.004 inches allows for a precise fit to the cylinder, maximizing power and performance while reducing blow-by and oil consumption. This is a 100mm 500cc Big Bore piston.","descriptionMarkdown":"### Vertex 100mm 500cc Big Bore Piston Kit\n\nUpgrade the performance of your four-stroke engine with this Vertex 100mm Big Bore Piston Kit. Designed for riders looking to increase displacement and maximize power, this kit provides a reliable solution for high-performance engine builds. Vertex is globally recognized for engineering excellence and providing components that withstand the extreme demands of modern high-compression engines.\n\n### Key Features\n\n \n- High-Strength Construction: Forged from premium 2618 aluminum alloy to ensure maximum durability and resistance to the high pressures generated within the cylinder.\n \n- Advanced Coating: Features a specialized Molybdenum Disulphide (MOS2) coating on the piston skirt to facilitate a smoother break-in process and significantly reduce friction and engine wear.\n \n- Precision Engineering: Designed with unique piston profiles to optimize combustion efficiency and performance output.\n \n- Superior Seal: Engineered to reduce blow-by and minimize oil consumption, ensuring your engine maintains consistent compression and power throughout its lifespan.\n \n- Performance Focused: Ideal for serious enthusiasts and racers aiming to increase engine displacement to 500cc for improved torque and overall acceleration.\n\nBy choosing Vertex, you are investing in a piston kit that bridges the gap between factory standards and professional racing performance. Whether you are rebuilding your engine or seeking a significant displacement increase, this 100mm big bore kit offers the quality and reliability required for intensive riding conditions.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-100mm-500cc-big-bore","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/7bd118529e3f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/7bd118529e3f: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. 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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."]}}