{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d03bb0ffe4f4","name":"HONDA CR 250 2005-2007 GRADE A 66.34mm SINGLE RING RACE PISTON","sku":"V.3133A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":5,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. The pistons are made using gravity cast or hydraulic forging processes, and the material structure is refined using a hi-tech heat treatment. Machining is completed using the latest CNC machines and software with diamond tools. A special Molybdenum Bisulphite black coating is applied to aid break-in and reduce friction. Vertex also offers a new Phosphate Coating which increases hardness and surface porosity for superior adhesion and durability.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-2005-2007-grade-a-66.34mm-single-ring-race-piston-6247-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-2005-2007-grade-a-66.34mm-single-ring-race-piston-6247-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. The pistons are made using gravity cast or hydraulic forging processes, and the material structure is refined using a hi-tech heat treatment. Machining is completed using the latest CNC machines and software with diamond tools. A special Molybdenum Bisulphite black coating is applied to aid break-in and reduce friction. Vertex also offers a new Phosphate Coating which increases hardness and surface porosity for superior adhesion and durability.","descriptionMarkdown":"### Vertex Grade A 66.34mm Single Ring Race Piston\n\nEnhance the performance and reliability of your engine with the Vertex Grade A 66.34mm single ring race piston. Engineered for competitive racing applications, this piston is designed to provide optimal combustion efficiency and superior durability under high-stress conditions.\n\nVertex utilizes exotic Low-Ex silicon-charged aluminium alloys, available in 12%, 18%, or 21% concentrations depending on the specific application requirements. These pistons are produced through precision gravity casting or hydraulic forging, followed by a state-of-the-art heat treatment process. This involves automated solubilization and hot water quenching to ensure a refined material structure and exceptional structural integrity.\n\n### Key Features\n\n \n- Precision Engineering: Machined using advanced CNC technology and diamond tooling for exact tolerances and superior surface finishes.\n \n- Advanced Coating: Finished with a Molybdenum Bisulphite black coating to reduce friction and assist during the initial engine break-in period.\n \n- Enhanced Durability: Features an all-over phosphate coating that increases surface hardness and provides light porosity for superior adhesion of the Molybdenum layer, effectively doubling the durability of the coating.\n \n- Quality Assurance: Each piston undergoes rigorous manual and automatic quality control inspections to meet professional racing standards.\n \n- Race Ready: Single ring design specifically optimized for high-performance power delivery and reduced drag.\n\nWhether you are performing a top-end rebuild or preparing for a race season, this Vertex piston offers the technology and consistency needed to maintain peak engine performance.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-cr-250-2005-2007-grade-a-6634mm-single-ring-race-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d03bb0ffe4f4:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d03bb0ffe4f4:1"}},"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."]}}