{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"579db65d3ba3","name":"YAMAHA YZ 250 1999-2022 +1.10mm OVERSIZE 67.45mm TWIN RING PISTON","sku":"V.2584.110","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":210.52,"formatted":"£210.52"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon, depending on the application. They are produced using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines 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 to aid break-in and reduce friction. A new Phosphate Coating, used in Formula One engines, provides increased hardness and surface porosity for superior adhesion and durability of the Molybdenum Coating. This piston is twin ring and oversize by +1.10mm to 67.45mm.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-250-1999-2018-1.10mm-oversize-67.45mm-twin-ring-piston-7172-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-250-1999-2018-1.10mm-oversize-67.45mm-twin-ring-piston-7172-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon, depending on the application. They are produced using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines 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 to aid break-in and reduce friction. A new Phosphate Coating, used in Formula One engines, provides increased hardness and surface porosity for superior adhesion and durability of the Molybdenum Coating. This piston is twin ring and oversize by +1.10mm to 67.45mm.","descriptionMarkdown":"### Vertex Oversize Twin Ring Piston\n\nUpgrade your engine performance with this high-quality Vertex oversize twin ring piston. Engineered for durability and precision, this piston is designed to restore engine power and improve compression in worn cylinders. Vertex is a world leader in piston manufacturing, utilizing advanced materials and state-of-the-art processes to ensure optimal performance and reliability under demanding conditions.\n\n### Key Features and Construction\n\n \n- Advanced Alloy Composition: Manufactured using Low-Ex (low expansion) Silicon aluminium alloys with precise silicon content for maximum strength and thermal stability.\n \n- Precision Manufacturing: Produced through gravity casting or hydraulic forging, followed by a sophisticated automated heat treatment process to refine the material structure.\n \n- CNC Machined: Finished using cutting-edge CNC technology and diamond tooling to achieve exact surface tolerances and dimensions.\n \n- Advanced Coatings: Features a Molybdenum Bisulphite black coating to reduce friction and assist with the initial break-in process.\n \n- Phosphate Coating Technology: Incorporates a specialized phosphate surface treatment that increases hardness and provides superior adhesion for the Molybdenum coating, significantly extending the durability of the piston.\n \n- Rigorous Quality Control: Every unit undergoes strict manual and automatic inspection processes to maintain the highest manufacturing standards.\n\nWhether you are performing a full engine rebuild or looking for a reliable replacement component, this Vertex piston offers the technology and consistency required for peak engine operation.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-250-1999-2022-110mm-oversize-6745mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/579db65d3ba3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/579db65d3ba3:1"}},"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."]}}