{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b53e9cda88c0","name":"HONDA CR 250 2002-2004 GRADE B 66.35mm TWIN RING REPLICA","sku":"V.2809B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"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 produced using gravity casting or hydraulic forging, followed by a high-tech heat treatment process involving solubilization and quenching in hot water. Machining is performed using the latest CNC machines and diamond tools, achieving specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction, and a new Phosphate Coating for enhanced durability and adhesion. This product is a replica twin ring piston with a 66.35mm bore.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-2002-2004-grade-b-66.35mm-twin-ring-replica-2104-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-2002-2004-grade-b-66.35mm-twin-ring-replica-2104-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 produced using gravity casting or hydraulic forging, followed by a high-tech heat treatment process involving solubilization and quenching in hot water. Machining is performed using the latest CNC machines and diamond tools, achieving specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction, and a new Phosphate Coating for enhanced durability and adhesion. This product is a replica twin ring piston with a 66.35mm bore.","descriptionMarkdown":"### Vertex Replica Twin Ring Piston - 66.35mm Grade B\n\nThe Vertex Replica Twin Ring Piston is engineered to deliver high performance and reliability for your engine. Designed with precision, this replacement piston features a 66.35mm diameter and is manufactured using advanced materials and industry-leading production techniques to ensure a perfect fit and consistent power delivery.\n\nVertex utilizes exotic aluminium alloys, specifically Low-Ex (low expansion) silicon-charged materials, to maintain structural integrity under high-heat conditions. Whether through gravity casting or hydraulic forging, each piston blank undergoes a rigorous heat treatment process in an automated implant to refine the material structure for maximum durability.\n\n### Key Features and Technology\n\n \n- Advanced Coating Technology: Each piston features a Molybdenum Bisulphite black coating to assist with the break-in process and reduce internal friction.\n \n- Phosphate Coating: Incorporating developments from Formula One engines, the all-over phosphate coating provides a slight increase in hardness and surface porosity, significantly improving the adhesion and longevity of the Molybdenum coating.\n \n- Precision Machining: Manufactured using state-of-the-art CNC machines and diamond-tipped tooling to achieve the exact surface finish required for optimal engine performance.\n \n- Quality Assurance: Every piston undergoes a comprehensive manual and automatic quality control process, ensuring the highest standards of manufacturing excellence.\n \n- Twin Ring Design: Specifically engineered for reliable sealing and compression management during operation.\n\nWhen it comes to engine rebuilds, choosing a high-quality component like the Vertex Replica Piston ensures your machine runs smoothly and performs at its peak. This Grade B component is a dependable choice for riders looking for a premium replacement part that stands up to the demands of off-road riding.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-cr-250-2002-2004-grade-b-6635mm-twin-ring-replica","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b53e9cda88c0:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b53e9cda88c0:1"}},"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."]}}