{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b819789962cb","name":"HONDA CR 250 1997-2001 GRADE C  66.36mm SINGLE RING RACE PISTON","sku":"V.2455C","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"HONDA CR 250 1997-2001 GRADE C 66.36mm SINGLE RING RACE PISTON. Vertex pistons are manufactured using Low-Ex silicon charged aluminium alloys. The blank parts are made using gravity cast or hydraulic forging processes, with material structure refined through a hi-tech heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is completed using the latest CNC machines and software with diamond tools, achieving specific surface finishes for the final application. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, with increased hardness and light surface porosity, offers superior adhesion and durability of the Molybdenum Coating.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-1997-2001-grade-c-66.36mm-single-ring-race-piston-1565-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/honda-cr-250-1997-2001-grade-c-66.36mm-single-ring-race-piston-1565-p.jpg"],"description":"HONDA CR 250 1997-2001 GRADE C 66.36mm SINGLE RING RACE PISTON. Vertex pistons are manufactured using Low-Ex silicon charged aluminium alloys. The blank parts are made using gravity cast or hydraulic forging processes, with material structure refined through a hi-tech heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is completed using the latest CNC machines and software with diamond tools, achieving specific surface finishes for the final application. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, with increased hardness and light surface porosity, offers superior adhesion and durability of the Molybdenum Coating.","descriptionMarkdown":"### Vertex High Performance Single Ring Race Piston\n\nUpgrade your engine performance with this precision engineered Vertex race piston. Designed for riders who demand reliability and power, this 66.36mm Grade C piston is manufactured using exotic Low-Ex silicon-charged aluminium alloys to ensure maximum durability and thermal stability under high stress racing conditions.\n\nEvery Vertex piston undergoes a sophisticated gravity cast or hydraulic forging process, followed by advanced heat treatment to refine the material structure. Precision machining is achieved through state of the art CNC technology and diamond tooling, ensuring exact tolerances and optimal surface finishes tailored for high performance output.\n\n### Key Features\n\n \n- Advanced Alloy Construction: Manufactured with silicon-charged aluminium to reduce expansion and maintain structural integrity.\n \n- Molybdenum Bisulphite Coating: Features a specialized black coating to assist with the break in process and significantly reduce friction within the cylinder.\n \n- Phosphate Coating Technology: Utilizes a hardness-increasing phosphate base that improves adhesion of the Molybdenum coating, doubling the durability of the surface finish.\n \n- Rigorous Quality Control: Each piston passes through comprehensive manual and automatic inspections to meet the highest industry standards.\n \n- Single Ring Design: Engineered specifically for racing applications to reduce friction and improve throttle response.\n\nWhether you are rebuilding your engine for a competitive edge or performing routine race maintenance, this Vertex piston provides the professional grade reliability required for demanding off-road use.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/honda-cr-250-1997-2001-grade-c-6636mm-single-ring-race-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b819789962cb:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b819789962cb: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."]}}