{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"91e55ff53654","name":"YAMAHA YZ 125 2002-2004 GRADE B 53.94mm SINGLE RING PISTON","sku":"V.2806B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":178.12,"formatted":"£178.12"},"summary":"Vertex pistons are manufactured using Low-Ex silicon aluminium alloys. The blank parts are made using gravity cast or hydraulic forging processes, then refined through a hi-tech heat treatment with solubilization by quench in hot water. Machining is completed using CNC machines and software with diamond tools, allowing for specific surface finishes. Each Vertex piston undergoes rigorous quality control. Vertex pistons are coated with 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 to the Molybdenum Coating, extending durability. This is a Grade B 53.94mm single ring piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2002-2004-grade-b-53.94mm-single-ring-piston-2109-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2002-2004-grade-b-53.94mm-single-ring-piston-2109-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex silicon aluminium alloys. The blank parts are made using gravity cast or hydraulic forging processes, then refined through a hi-tech heat treatment with solubilization by quench in hot water. Machining is completed using CNC machines and software with diamond tools, allowing for specific surface finishes. Each Vertex piston undergoes rigorous quality control. Vertex pistons are coated with 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 to the Molybdenum Coating, extending durability. This is a Grade B 53.94mm single ring piston.","descriptionMarkdown":"### Vertex Grade B 53.94mm Single Ring Piston\n\nEngineered for high-performance off-road applications, this Vertex single ring piston is designed to meet the rigorous demands of professional racing and enthusiast riding. Vertex pistons are manufactured using advanced low-expansion silicon-rich aluminum alloys, ensuring superior structural integrity and thermal resistance under intense engine conditions.\n\nEach piston is crafted using a specialized gravity cast or hydraulic forging process, followed by a precision heat treatment in an automated implant to refine the material structure. This ensures maximum durability and reliability throughout the piston service life.\n\n### Key Features\n\n \n- Precision Engineering: Machined using state-of-the-art CNC technology and diamond tools for specific surface finishes tailored to high-performance engine requirements.\n \n- Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to assist with the break-in process and minimize friction between the piston and cylinder wall.\n \n- Enhanced Durability: Incorporates a specialized Phosphate coating that increases surface hardness and provides superior adhesion for the Molybdenum layer, effectively doubling the coating durability.\n \n- Quality Assured: Every piston undergoes a comprehensive manual and automatic quality control process to ensure it meets strict performance and safety standards.\n \n- Optimal Specification: This Grade B piston features a 53.94mm diameter designed for precise fitment and improved engine compression.\n\nWhether you are performing a top-end rebuild or a full engine restoration, this Vertex piston provides the professional-grade performance and longevity required to keep your engine running at peak output.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-125-2002-2004-grade-b-5394mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/91e55ff53654:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/91e55ff53654:1"}},"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."]}}