{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"13718ded2a33","name":"KAWASAKI KXF 250 2021-2022 GRADE A 77.95mm G.P RACERS CHOICE 15.05:1","sku":"V.4515A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":356.32,"formatted":"£356.32"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content, depending on the application. These pistons are produced using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using CNC machines and diamond tools, achieving specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed from Formula One engine technology, offers increased hardness, light surface porosity, and superior adhesion and durability for the Molybdenum Coating. This piston has a bore of 77.95mm and a compression ratio of 15.05:1.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2020-grade-c-77.97mm-g.p-racers-choice-10539-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kxf-250-2020-grade-c-77.97mm-g.p-racers-choice-10539-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content, depending on the application. These pistons are produced using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using CNC machines and diamond tools, achieving specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed from Formula One engine technology, offers increased hardness, light surface porosity, and superior adhesion and durability for the Molybdenum Coating. This piston has a bore of 77.95mm and a compression ratio of 15.05:1.","descriptionMarkdown":"### Vertex GP Racers Choice High Compression Piston Kit\n\nExperience elite engine performance with the Vertex GP Racers Choice piston kit. Engineered for riders who demand maximum power and reliability, this high compression piston features a 15.05:1 ratio and is precision-machined at 77.95mm to ensure an optimal seal and peak combustion efficiency.\n\nVertex utilizes advanced exotic Low-Ex silicon-charged aluminium alloys to provide superior thermal stability and strength. Through a sophisticated hydraulic forging process and automated heat treatment, these pistons maintain structural integrity under the most extreme racing conditions.\n\n### Key Features\n\n \n- Advanced Coating Technology: Each piston is finished with a Molybdenum Bisulphite black coating to reduce internal friction and assist during the break-in process.\n \n- Enhanced Durability: The updated Phosphate coating increases surface hardness and provides superior adhesion for the Molybdenum layer, effectively doubling the longevity of the coating.\n \n- Precision Engineering: Manufactured using state-of-the-art CNC machinery and diamond-tipped tooling to achieve exacting tolerances and specific surface finishes.\n \n- Rigorous Quality Control: Every unit undergoes strict manual and automatic inspection to guarantee that only the highest quality components reach your engine.\n \n- GP Racers Choice Design: Specifically developed for high-performance applications to deliver improved throttle response and increased horsepower.\n\nUpgrade your engine's internal components with a Vertex piston kit, the choice of professionals and enthusiasts looking to push their machine to the limit on the track.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/kawasaki-kxf-250-2021-2022-grade-a-7795mm-gp-racers-choice-15051","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."]}}