{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b8975fe720d8","name":"HONDA CR 250 1997-2001 GRADE B  66.35mm SINGLE RING RACE PISTON","sku":"V.2455B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"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. Pistons are made using gravity cast or hydraulic forging processes, followed by heat treatment in an automatic HT implant with solubilization by quenching 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 Molybdenum Bisulphite for break-in and friction reduction, and also feature a new Phosphate Coating for increased hardness, surface porosity, and enhanced Molybdenum Coating adhesion for double durability. This piston has a 66.35mm bore and a single ring design.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-1997-2001-grade-b-66.35mm-single-ring-race-piston-1569-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-1997-2001-grade-b-66.35mm-single-ring-race-piston-1569-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 cast or hydraulic forging processes, followed by heat treatment in an automatic HT implant with solubilization by quenching 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 Molybdenum Bisulphite for break-in and friction reduction, and also feature a new Phosphate Coating for increased hardness, surface porosity, and enhanced Molybdenum Coating adhesion for double durability. This piston has a 66.35mm bore and a single ring design.","descriptionMarkdown":"### High-Performance Vertex Single Ring Race Piston\n\nUpgrade your engine performance with the Vertex Single Ring Race Piston. Engineered for demanding environments, this piston is manufactured from high-grade Low-Ex silicon aluminum alloys, offering superior durability and reduced thermal expansion. Whether you are racing or pushing your engine to its limits, this component is designed to maintain structural integrity under high-stress conditions.\n\n### Advanced Engineering and Precision Manufacturing\n\nEach piston is produced using either gravity casting or hydraulic forging processes, refined through state of the art heat treatment technology. Precision CNC machining and diamond tooling ensure exact tolerances and specific surface finishes tailored for optimal engine efficiency.\n\n### Key Features\n\n \n- Precision Alloy Construction: Crafted from high-silicon content aluminum for maximum strength and minimal expansion.\n \n- Molybdenum Bisulphite Coating: A specialized black coating that significantly reduces friction and assists with the piston break-in process.\n \n- Enhanced Phosphate Coating: Features a durable phosphate base that improves adhesion of the Molybdenum coating, doubling its lifespan and wear resistance.\n \n- Rigorous Quality Control: Every unit undergoes strict manual and automated inspections to ensure consistent quality and reliability.\n \n- Race Ready Specifications: Designed as a 66.35mm single ring configuration to provide a balance of performance and engine response.\n\nVertex pistons represent the latest in high-tech engine component manufacturing, utilizing techniques inspired by Formula One technology to ensure your engine runs smoother and lasts longer. Invest in reliable, race-proven performance for your machine.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-cr-250-1997-2001-grade-b-6635mm-single-ring-race-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b8975fe720d8:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b8975fe720d8:1"}},"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."]}}