{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"20f0e45865ac","name":"HONDA RS 125 2003-2009 GRADE D 53.97mm FLAT TOP .78mm RING","sku":"V.3224D","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":10,"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. They are produced using gravity casting or hydraulic forging, followed by a heat treatment process with solubilization and quenching in hot water. Machining is performed using CNC machines and diamond tools to achieve specific surface finishes. Each piston undergoes manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed following Formula One engine advancements, provides increased hardness, surface porosity, and superior adhesion qualities for enhanced coating durability. This piston has a 53.97mm flat top with a 0.78mm ring.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-rs-125-2003-2009-grade-d-53.97mm-flat-top-.78mm-ring-7629-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-rs-125-2003-2009-grade-d-53.97mm-flat-top-.78mm-ring-7629-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging, followed by a heat treatment process with solubilization and quenching in hot water. Machining is performed using CNC machines and diamond tools to achieve specific surface finishes. Each piston undergoes manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed following Formula One engine advancements, provides increased hardness, surface porosity, and superior adhesion qualities for enhanced coating durability. This piston has a 53.97mm flat top with a 0.78mm ring.","descriptionMarkdown":"### Vertex High Performance Flat Top Piston\n\nEngineered for excellence and reliability, the Vertex Grade D flat top piston is designed to meet the rigorous demands of high-performance racing. As utilized by top-tier professional race teams, this piston provides the durability and precision required to maintain peak engine performance under intense conditions.\n\n### Advanced Manufacturing Technology\n\nVertex utilizes exotic Low-Ex silicon-charged aluminium alloys to ensure structural integrity and thermal stability. The manufacturing process incorporates either gravity casting or hydraulic forging, followed by a state-of-the-art heat treatment process in an automatic HT implant. This ensures a refined material structure that delivers superior performance and longevity.\n\n### Precision Engineering and Durability\n\nEvery piston is machined using advanced CNC technology and diamond-tipped tooling to achieve the precise surface finish required for optimal engine operation. To further enhance performance and lifespan, each piston features a sophisticated coating system:\n\n \n- Molybdenum Bisulphite Coating: A specialized black coating that assists during the critical break-in period and significantly reduces friction within the cylinder.\n \n- Phosphate Coating: Drawing from Formula One engine development, this all-over coating increases surface hardness and provides a light porosity that ensures superior adhesion of the Molybdenum layer, effectively doubling the durability of the protective finish.\n\n### Key Features\n\n \n- Grade D piston with a 53.97mm diameter\n \n- Engineered with high-specification Low-Ex silicon-charged aluminium alloys\n \n- Flat top design for consistent compression performance\n \n- High-tech heat-treated for improved material strength\n \n- Advanced dual-coating system for reduced friction and extended component life\n \n- Strict manual and automatic quality control for unmatched reliability","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-rs-125-2003-2009-grade-d-5397mm-flat-top-78mm-ring","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/20f0e45865ac:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/20f0e45865ac: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."]}}