{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"862ffc0a985a","name":"KTM SX-F 250 2013 - 2015 EXC-F 250 2014 - 2016 BIG BORE 80.98mm 265cc 13.9:1","sku":"V.3867C","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":307.72,"formatted":"£307.72"},"summary":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy. Vertex pistons are designed to handle the high pressures of modern four-stroke engines. Vertex pistons use a Molybdenum Disulphide MOS2 coating on the piston skirt for break-in and reduced wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes with 0.01mm variations to ensure a perfect fit to the cylinder for maximum power and performance, and reduced blow-by and oil consumption. This piston is 80.98mm and 265cc with a 13.9:1 compression ratio.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-f-250-2013-2015-exc-f-250-2014-2016-big-bore-81mm-265cc-13.9-1-6334-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-f-250-2013-2015-exc-f-250-2014-2016-big-bore-81mm-265cc-13.9-1-6334-p.jpg"],"description":"Vertex four-stroke pistons are forged from high-quality 2618 aluminum alloy. Vertex pistons are designed to handle the high pressures of modern four-stroke engines. Vertex pistons use a Molybdenum Disulphide MOS2 coating on the piston skirt for break-in and reduced wear. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes with 0.01mm variations to ensure a perfect fit to the cylinder for maximum power and performance, and reduced blow-by and oil consumption. This piston is 80.98mm and 265cc with a 13.9:1 compression ratio.","descriptionMarkdown":"### Vertex Big Bore Piston Kit 265cc\n\nUpgrade your engine performance with the Vertex Big Bore Piston Kit. Engineered for riders who demand increased power and reliability, this high-performance piston is designed to deliver optimal results under the intense pressures of modern four-stroke racing engines.\n\nManufactured from premium 2618 aluminum alloy, this forged piston offers superior strength and durability. Vertex utilizes advanced engineering to provide precise piston profiles and compression ratios, ensuring a perfect fit that maximizes engine output while minimizing blow-by and oil consumption.\n\n### Key Features\n\n \n- Forged Construction: Produced from high-quality 2618 aluminum alloy for maximum structural integrity and heat resistance.\n \n- MOS2 Coating: Each piston features a specialized Molybdenum Disulphide coating on the skirt to reduce friction, aid in the break-in process, and minimize long-term wear.\n \n- Engineered Precision: Designed to offer specific compression ratios for improved combustion efficiency and increased horsepower.\n \n- Optimized Performance: Specifically developed for big bore applications to ensure reliable, high-level performance across the entire powerband.\n\nWhether you are rebuilding your engine for competitive racing or looking for a reliable power boost, the Vertex Big Bore Piston provides the quality and consistency required to maintain your machine at its peak potential.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-f-250-2013-2015-exc-f-250-2014-2016-big-bore-8098mm-265cc-1391","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/862ffc0a985a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/862ffc0a985a: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."]}}