{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"eebe70a3a8c4","name":"KTM SX-F 250 2013 - 2015 EXC-F 250 2014 - 2016 BIG BORE 80.97mm 265cc 13.9:1","sku":"V.3867B","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 to withstand the pressures of modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating for easier break-in and reduced wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, with 0.01mm variations to ensure a precise fit within the cylinder for optimal power and performance, while minimizing blow-by and oil consumption. This specific piston is an 80.97mm 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 to withstand the pressures of modern four-stroke engines. The piston skirt features a Molybdenum Disulphide (MOS2) coating for easier break-in and reduced wear. Vertex pistons offer unique profiles and compression ratios in A, B, C, and D sizes, with 0.01mm variations to ensure a precise fit within the cylinder for optimal power and performance, while minimizing blow-by and oil consumption. This specific piston is an 80.97mm 265cc with a 13.9:1 compression ratio.","descriptionMarkdown":"### Vertex High-Performance Big Bore Piston Kit\n\nEnhance your engine performance with the Vertex Big Bore Piston Kit. Designed for riders seeking increased displacement and reliable power, this 80.97mm piston increases your engine capacity to 265cc. Engineered to meet the demands of modern four-stroke engines, this kit provides a significant upgrade over stock components.\n\n### Key Features and Benefits\n\n \n- Advanced Material Construction: Each piston is precision forged from high-quality 2618 aluminum alloy, providing the structural integrity required to withstand high cylinder pressures and intense racing conditions.\n \n- Molybdenum Disulphide (MOS2) Coating: The piston skirt features a specialized MOS2 coating. This advanced treatment reduces friction, assists in a smoother break-in process, and minimizes premature wear on critical engine components.\n \n- Optimized Compression Ratio: Engineered with a 13.9:1 compression ratio, this piston is designed to maximize combustion efficiency and deliver a noticeable boost in torque and horsepower.\n \n- Precision Engineering: Vertex pistons are manufactured with unique profiles to ensure a perfect fit within your cylinder. This level of accuracy minimizes blow-by and oil consumption, allowing your engine to maintain consistent peak performance for longer periods.\n \n- Race-Proven Reliability: Whether you are hitting the track or navigating technical trails, Vertex pistons are trusted by enthusiasts for their durability and consistent power delivery throughout the rev range.\n\nUpgrade your machine with the Vertex Big Bore Piston and experience the difference in performance and efficiency that premium forged metallurgy provides.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-f-250-2013-2015-exc-f-250-2014-2016-big-bore-8097mm-265cc-1391","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/eebe70a3a8c4:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/eebe70a3a8c4:1"}},"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."]}}