{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2773a71fa7e8","name":"KAWASAKI KXF 250 2017-2019 GRADE A 76.95mm G.P RACERS CHOICE 13.9:1","sku":"V.4269A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":323.92,"formatted":"£323.92"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity cast or hydraulic forging, followed by a high-tech heat treatment process. Machining is performed on the latest CNC machines using diamond tools, achieving specific surface finishes. Each piston undergoes rigorous quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, similar to Formula One engine developments, is also available, offering increased hardness and superior adhesion of the Molybdenum Coating for enhanced durability.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2017-2019-grade-a-76.95mm-g.p-racers-choice-13.9-1-10526-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2017-2019-grade-a-76.95mm-g.p-racers-choice-13.9-1-10526-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity cast or hydraulic forging, followed by a high-tech heat treatment process. Machining is performed on the latest CNC machines using diamond tools, achieving specific surface finishes. Each piston undergoes rigorous quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, similar to Formula One engine developments, is also available, offering increased hardness and superior adhesion of the Molybdenum Coating for enhanced durability.","descriptionMarkdown":"### Vertex G.P. Racers Choice High Compression Piston\n\nThe Vertex G.P. Racers Choice piston is engineered for riders who demand peak performance and reliability. Designed with a high 13.9:1 compression ratio, this piston is precision-machined to meet the exacting requirements of racing applications, providing an optimal upgrade for your engine build.\n\nVertex utilizes exotic Low-Ex silicon-charged aluminium alloys, chosen for their superior thermal stability and durability. The manufacturing process incorporates either gravity casting or hydraulic forging, followed by an advanced heat-treatment cycle to refine the material structure for maximum strength under high-stress conditions.\n\n### Advanced Engineering and Surface Treatment\n\nEvery piston is manufactured using state-of-the-art CNC technology and diamond tooling to ensure precise dimensions and surface finishes. To further enhance performance and engine longevity, Vertex has integrated industry-leading coating technologies:\n\n \n- Molybdenum Bisulphite Coating: A specialized black coating that assists during the critical break-in period and significantly reduces friction within the cylinder.\n \n- Phosphate Coating: Borrowing technology from Formula One, this coating provides a slight increase in surface hardness and introduces light surface porosity. This creates superior adhesion for the Molybdenum layer, effectively doubling the durability of the piston coatings.\n\n### Key Features\n\n \n- Grade A precision sizing at 76.95mm for consistent performance.\n \n- High-performance 13.9:1 compression ratio designed for racing.\n \n- Advanced aluminium alloy construction for low expansion and high heat resistance.\n \n- Rigorous manual and automatic quality control checks to ensure structural integrity.\n \n- Engineered to minimize friction and wear for extended engine life.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/kawasaki-kxf-250-2017-2019-grade-a-7695mm-gp-racers-choice-1391","buyOneNow":null,"basketWithThis":null}},"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."]}}