{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"a6e66b780feb","name":"YAMAHA YZ 250 1996-1998 GRADE B 67.95mm TWIN RING PISTON","sku":"V.2356B","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. The pistons are produced using gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is completed 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 for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness, light surface porosity, and superior adhesion qualities for enhanced coating durability. This listing is for a twin ring piston with a 67.95mm bore size.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-250-1996-1998-grade-b-67.95mm-twin-ring-piston-1598-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-250-1996-1998-grade-b-67.95mm-twin-ring-piston-1598-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content, depending on the application. The pistons are produced using gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is completed 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 for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness, light surface porosity, and superior adhesion qualities for enhanced coating durability. This listing is for a twin ring piston with a 67.95mm bore size.","descriptionMarkdown":"### Precision Engineered Vertex Twin Ring Piston\n\nUpgrade your engine performance with this Vertex Grade B 67.95mm twin ring piston. Designed for riders who demand reliability and durability, this piston is manufactured using advanced aluminium alloys and cutting-edge production techniques to ensure peak performance under demanding conditions.\n\n### Advanced Materials and Manufacturing\n\nVertex pistons are engineered using specialized Low-Ex silicon-charged aluminium alloys. Through a combination of gravity casting or hydraulic forging processes, each piston blank is refined with a high-tech heat treatment cycle. This ensures a robust material structure capable of handling intense thermal cycles and high-performance operation.\n\n### Key Features\n\n \n- Precision Machining: Produced using state-of-the-art CNC machinery and diamond tooling for exact tolerances and superior surface finishes.\n \n- Quality Assurance: Every unit undergoes rigorous manual and automatic quality control inspections to meet professional standards.\n \n- Performance Coatings: Features a Molybdenum Bisulphite black coating to minimize friction during the break-in period and throughout the service life of the piston.\n \n- Enhanced Durability: Incorporates an advanced phosphate coating which increases surface hardness and improves the adhesion of the Molybdenum layer, effectively doubling the coating durability compared to standard applications.\n \n- Twin Ring Design: Engineered to provide an optimal seal and heat transfer properties for high-output engine cycles.\n\n### Why Choose Vertex?\n\nBy utilizing manufacturing technologies derived from Formula One racing, Vertex delivers a piston that balances strength, weight, and friction reduction. This piston is an ideal choice for engine rebuilds or performance upgrades where consistency and engine longevity are the primary goals.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-250-1996-1998-grade-b-6795mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/a6e66b780feb:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/a6e66b780feb: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. 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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."]}}