{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"375fd33b42f4","name":"KAWASAKI KXF 250 2017-2019 GRADE B 76.96mm G.P RACERS CHOICE 13.9:1","sku":"V.4269B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":323.92,"formatted":"£323.92"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon depending on the application. Pistons are made using gravity cast or hydraulic forging processes and refined with a hi-tech heat treatment. Machining is completed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness and light surface porosity for superior Molybdenum Coating adhesion and durability. This piston has a 76.96mm bore and a 13.9:1 compression ratio.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2017-2019-grade-b-76.96mm-g.p-racers-choice-13.9-1-10527-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2017-2019-grade-b-76.96mm-g.p-racers-choice-13.9-1-10527-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon depending on the application. Pistons are made using gravity cast or hydraulic forging processes and refined with a hi-tech heat treatment. Machining is completed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness and light surface porosity for superior Molybdenum Coating adhesion and durability. This piston has a 76.96mm bore and a 13.9:1 compression ratio.","descriptionMarkdown":"### Vertex G.P. Racers Choice High-Compression Piston\n\nEnhance the performance and reliability of your engine with the Vertex G.P. Racers Choice piston. Engineered for competitive riders and racing applications, this high-performance piston features a 13.9:1 compression ratio and a 76.96mm bore diameter. Vertex is a world-renowned leader in piston technology, utilizing advanced manufacturing processes to ensure maximum durability and power output on the track.\n\n### Advanced Engineering and Materials\n\nVertex pistons are crafted from exotic, low-expansion aluminum alloys specifically charged with 12%, 18%, or 21% silicon content to match the demands of the application. The manufacturing process utilizes either gravity casting or hydraulic forging, followed by a state-of-the-art heat treatment in an automated system to refine the material structure. Precision machining is achieved through advanced CNC technology and diamond-tipped tools, ensuring exact tolerances and optimal surface finishes.\n\n### Key Features\n\n \n- High Compression: Engineered with a 13.9:1 compression ratio for increased engine power.\n \n- Superior Coatings: Finished with a Molybdenum Bisulphite black coating to reduce friction and assist with the break-in process.\n \n- Phosphate Coating: Features an all-over phosphate coating that increases surface hardness and improves the adhesion of the Molybdenum layer for twice the durability.\n \n- Rigorous Quality Control: Every piston undergoes strict manual and automatic inspections to meet the highest quality standards.\n \n- Professional Performance: Designed as a G.P. Racers Choice component for those seeking elite-level engine responsiveness.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/kawasaki-kxf-250-2017-2019-grade-b-7696mm-gp-racers-choice-1391","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/375fd33b42f4:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/375fd33b42f4:1"}},"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."]}}