{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e8ad6878ed8f","name":"KTM SX 300I (FUEL INJECTED) 2023 GRADE C 71.945mm TWIN RING PISTON","sku":"V.4244C","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":291.52,"formatted":"£291.52"},"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, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is completed using CNC machines and diamond tools to achieve specific surface finishes. Each Vertex piston undergoes manual and automatic quality control. Vertex pistons are coated with a black Molybdenum Bisulphite coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness, light surface porosity, and superior adhesion of the Molybdenum Coating for extended durability. This is a Grade C 71.945mm twin ring piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-exc-300-tpi-fuel-injected-2018-2020-grade-c-71.945mm-twin-ring-piston-7882-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-exc-300-tpi-fuel-injected-2018-2020-grade-c-71.945mm-twin-ring-piston-7882-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, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is completed using CNC machines and diamond tools to achieve specific surface finishes. Each Vertex piston undergoes manual and automatic quality control. Vertex pistons are coated with a black Molybdenum Bisulphite coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness, light surface porosity, and superior adhesion of the Molybdenum Coating for extended durability. This is a Grade C 71.945mm twin ring piston.","descriptionMarkdown":"### Vertex Grade C Twin Ring Piston for Fuel Injected 300cc Engines\n\nMaintain peak engine performance with this premium Vertex replacement piston. Engineered specifically for high-performance fuel-injected engines, this twin ring piston offers the durability and precision required for demanding riding conditions.\n\nVertex utilizes advanced manufacturing processes to ensure every component meets rigorous quality standards. By using exotic Low-Ex silicon-charged aluminium alloys, these pistons provide superior heat resistance and structural integrity. Whether you are racing or trail riding, this piston is designed to restore compression and power to your engine.\n\n### Key Features\n\n \n- Advanced Alloy Construction: Manufactured from high-grade aluminium alloys with 12%, 18%, or 21% silicon content for minimal thermal expansion and maximum strength.\n \n- Precision Machining: Produced using state-of-the-art CNC technology and diamond-tipped tools to achieve specific surface finishes for optimal performance.\n \n- Molybdenum Bisulphite Coating: A specialized black coating reduces friction during the critical break-in period and provides ongoing protection during operation.\n \n- Phosphate Coating Technology: Inspired by Formula One engineering, this treatment improves surface hardness and porosity, significantly extending the lifespan and adhesion of the Molybdenum coating.\n \n- Rigorous Quality Control: Every piston undergoes thorough manual and automatic inspection to guarantee a perfect fit and reliable performance.\n \n- Twin Ring Design: Engineered to provide an excellent seal and consistent compression throughout the RPM range.\n\nThis Grade C piston is an ideal choice for riders looking to rebuild their top end with a component that matches or exceeds original equipment specifications. The combination of heat treatment and proprietary coatings ensures that this piston can withstand the high thermal loads associated with modern fuel-injected 300cc engines.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-300i-fuel-injected-2023-grade-c-71945mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e8ad6878ed8f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e8ad6878ed8f: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."]}}