{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a2d87ab30634","name":"KAWASAKI KX 250 1998-2001 GRADE D 66.38mm SINGLE RING RACE PISTON","sku":"V.2579D","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":218.62,"formatted":"£218.62"},"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, then refined through a high-tech heat treatment process. Machining is completed using the latest CNC machines and diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. Vertex also offers a Phosphate Coating for increased hardness and improved adhesion of the Molybdenum Coating, extending durability. This is a Grade D, 66.38mm single ring race piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kx-250-1998-2001-grade-d-66.38mm-1687-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kx-250-1998-2001-grade-d-66.38mm-1687-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, then refined through a high-tech heat treatment process. Machining is completed using the latest CNC machines and diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. Vertex also offers a Phosphate Coating for increased hardness and improved adhesion of the Molybdenum Coating, extending durability. This is a Grade D, 66.38mm single ring race piston.","descriptionMarkdown":"### Vertex Race Piston - Grade D 66.38mm Single Ring\n\nEnhance the performance and reliability of your engine with this Vertex high-performance race piston. Engineered for precision and durability, this piston is manufactured using advanced metallurgical processes to meet the rigorous demands of competitive off-road racing.\n\nVertex utilizes exotic Low-Ex (low expansion) silicon-charged aluminum alloys to ensure optimal thermal stability. Whether through gravity casting or hydraulic forging, each piston undergoes a cutting-edge heat treatment process, including solubilization and hot water quenching, to refine the material structure for maximum strength.\n\n### Key Features\n\n \n- Precision Engineering: Machined using state-of-the-art CNC technology and diamond tooling for exact tolerances and superior surface finishes.\n \n- Advanced Coatings: Features a Molybdenum Bisulphite black coating to reduce friction and assist during the break-in process.\n \n- Enhanced Durability: Incorporates a phosphate coating that provides a slight hardness increase and improved surface porosity for superior adhesion of the Molybdenum coating.\n \n- Rigorous Quality Control: Every unit undergoes both manual and automatic inspection processes to ensure the highest manufacturing standards.\n \n- Race Ready: Designed specifically as a single ring race piston to minimize friction and maximize power output.\n\nBy integrating technologies derived from Formula One engine development, Vertex pistons provide extended durability and consistent performance. This 66.38mm Grade D piston is an essential upgrade for riders looking to maintain peak engine efficiency and responsive power delivery.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/kawasaki-kx-250-1998-2001-grade-d-6638mm-single-ring-race-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a2d87ab30634:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a2d87ab30634:1"}},"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."]}}