{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a76a27bed25d","name":"KTM SX 250 2000-2002 EXC 250 2000-2005 GRADE A 66.34mm TWIN RING PISTON","sku":"V.2650A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"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 cast or hydraulic forging processes. Material structure is refined using automatic hi-tech Heat Treatment with solubilization by quench in hot water. Machining is completed using the latest CNC machines, software, and diamond tools to achieve specific surface finishes. 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 offers increased hardness, light surface porosity, and superior adhesion of the Molybdenum Coating, doubling coating durability. This is a Grade A 66.34mm twin ring piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-250-2000-2002-exc-250-2000-2005-grade-a-66.34mm-twin-ring-piston-1700-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-250-2000-2002-exc-250-2000-2005-grade-a-66.34mm-twin-ring-piston-1700-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 cast or hydraulic forging processes. Material structure is refined using automatic hi-tech Heat Treatment with solubilization by quench in hot water. Machining is completed using the latest CNC machines, software, and diamond tools to achieve specific surface finishes. 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 offers increased hardness, light surface porosity, and superior adhesion of the Molybdenum Coating, doubling coating durability. This is a Grade A 66.34mm twin ring piston.","descriptionMarkdown":"### Vertex Grade A 66.34mm Twin Ring Piston\n\nThe Vertex Grade A 66.34mm Twin Ring Piston is engineered for high performance and durability, utilizing advanced manufacturing techniques to ensure optimal engine function. Designed for demanding applications, this piston is crafted from specialized Low-Ex (low expansion) silicon-charged aluminum alloys, providing superior structural integrity and thermal resistance.\n\nEvery Vertex piston undergoes a sophisticated production process, utilizing either gravity casting or hydraulic forging, followed by a precision heat treatment cycle. This process refines the material structure to meet the rigorous demands of competitive riding. The final machining is executed on state-of-the-art CNC equipment with diamond tooling, ensuring exact tolerances and specific surface finishes.\n\n### Key Features\n\n \n- Advanced Alloy Composition: Manufactured with high silicon content (12%, 18%, or 21% depending on the specific application) to reduce expansion and maintain consistent clearances.\n \n- Phosphate Coating: Features a modern phosphate surface treatment that increases surface hardness and provides excellent adhesion for the secondary coating.\n \n- Molybdenum Bisulphite Coating: A high-performance black coating that minimizes friction and aids significantly during the critical break-in process.\n \n- Precision Engineering: CNC machined for exacting dimensions and weight consistency.\n \n- Rigorous Quality Control: Each piston passes through comprehensive manual and automated inspection stages to meet strict manufacturing standards.\n \n- Twin Ring Design: Optimized for stable ring seal and consistent compression throughout the power band.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-250-2000-2002-exc-250-2000-2005-grade-a-6634mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a76a27bed25d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a76a27bed25d: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."]}}