{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"3244996eb991","name":"KTM SX 300I (FUEL INJECTED) 2023 GRADE D 71.955mm TWIN RING PISTON","sku":"V.4244D","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":5,"price":{"amount":291.52,"formatted":"£291.52"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. Pistons are made using gravity casting or hydraulic forging, with the material structure refined through a hi-tech heat treatment process. Machining is completed using the latest CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Vertex pistons are coated with Molybdenum Bisulphite for break-in and friction reduction, and also feature a new Phosphate Coating for increased hardness, porosity, and superior adhesion qualities, doubling coating durability. This piston is 71.955mm and twin ring.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/gas-gas-ec-mx-sm-125-2003-2010-grade-c-53.97mm-2918-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/gas-gas-ec-mx-sm-125-2003-2010-grade-c-53.97mm-2918-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. Pistons are made using gravity casting or hydraulic forging, with the material structure refined through a hi-tech heat treatment process. Machining is completed using the latest CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Vertex pistons are coated with Molybdenum Bisulphite for break-in and friction reduction, and also feature a new Phosphate Coating for increased hardness, porosity, and superior adhesion qualities, doubling coating durability. This piston is 71.955mm and twin ring.","descriptionMarkdown":"### Vertex Grade D Twin Ring Piston for Fuel Injected 300cc Engines\n\nEngineered for high performance and reliability, the Vertex Twin Ring Piston is a premium replacement component designed to meet the rigorous demands of fuel injected 300cc two-stroke engines. Manufactured using advanced metallurgical techniques, this piston offers superior strength and thermal stability under extreme racing conditions.\n\nVertex utilizes exotic Low-Ex silicon-charged aluminium alloys, processed through sophisticated gravity casting or hydraulic forging methods. To ensure maximum durability, every piston undergoes a specialized heat treatment process that refines the internal material structure for consistent performance.\n\n### Key Features\n\n \n- Precision Engineering: Machined on state-of-the-art CNC equipment using diamond-tipped tools to achieve exact tolerances and specific surface finishes.\n \n- Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to assist with the initial break-in period and reduce friction during operation.\n \n- Phosphate Coating: Incorporates a secondary phosphate coating that provides increased surface hardness and superior adhesion for the molybdenum layer, effectively doubling its durability.\n \n- Rigorous Quality Control: Each piston is subjected to both manual and automatic inspection processes to ensure it meets the highest manufacturing standards.\n \n- Twin Ring Design: Engineered to provide an excellent seal and optimal heat transfer between the piston and the cylinder wall.\n\nBy integrating technology inspired by Formula One engine development, Vertex pistons provide the endurance and efficiency required by serious riders. Whether you are performing a top-end rebuild or maintaining your engine for peak output, this Vertex piston is a reliable choice for consistent power delivery.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-300i-fuel-injected-2023-grade-d-71955mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/3244996eb991:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/3244996eb991:1"}},"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."]}}