{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"27e41057c8c4","name":"YAMAHA YZ 125 2005-2021 +2.00mm OVERSIZE 55.95mm SINGLE RING PISTON","sku":"V.3119.200","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":194.32,"formatted":"£194.32"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by hot water quench. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed following Formula One engine advancements, offers increased hardness and surface porosity for superior Molybdenum Coating adhesion and durability. This piston is +2.00mm oversize with a 55.95mm diameter.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-2.00mm-oversize-55.95mm-single-ring-piston-7163-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-2.00mm-oversize-55.95mm-single-ring-piston-7163-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by hot water quench. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating, developed following Formula One engine advancements, offers increased hardness and surface porosity for superior Molybdenum Coating adhesion and durability. This piston is +2.00mm oversize with a 55.95mm diameter.","descriptionMarkdown":"### Vertex Oversize Single Ring Piston\n\nRestore your engine performance with this precision-engineered Vertex +2.00mm oversize piston. Designed for high-performance applications, this 55.95mm piston is manufactured using premium Low-Ex silicon-charged aluminium alloys, chosen for their superior strength and low thermal expansion characteristics.\n\nEvery Vertex piston undergoes a sophisticated production process, utilizing either gravity casting or hydraulic forging to create a robust foundation. The internal material structure is then refined through a state-of-the-art heat treatment process, ensuring maximum durability and longevity under heavy engine loads.\n\n### Key Features\n\n \n- Precision Machining: Crafted using advanced CNC technology and diamond tooling to achieve exact tolerances and specific surface finishes.\n \n- Advanced Coatings: Features a Molybdenum Bisulphite black coating to assist with the break-in process and minimize internal friction during operation.\n \n- Enhanced Durability: Incorporates a phosphate coating that increases surface hardness and improves the adhesion of the Molybdenum coating, significantly extending component life.\n \n- Rigorous Quality Control: Each piston is subjected to both manual and automatic inspection processes to ensure the highest standards of quality and performance.\n \n- High-Tech Material: Manufactured with silicon-charged alloys that are treated in automatic heat treatment plants for optimal structural integrity.\n\nThis single ring piston is an ideal choice for engine rebuilds requiring an oversize bore, providing a reliable and efficient solution for maintaining factory-level power and responsiveness.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-125-2005-2021-200mm-oversize-5595mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/27e41057c8c4:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/27e41057c8c4:1"}},"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."]}}