{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"0a8eb7b5379b","name":"YAMAHA YZ 125 2005-2021 GRADE A 53.93mm SINGLE RING PISTON","sku":"V.3119A","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":7,"price":{"amount":178.12,"formatted":"£178.12"},"summary":"Vertex pistons are manufactured using Low-Ex aluminum alloys with 12%, 18%, or 21% silicon. Piston blanks are created using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic implant with hot water quench. Machining is done using the latest CNC machines and diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Pistons are coated with Molybdenum Bisulphite for break-in and friction reduction. A new Phosphate Coating offers increased hardness and surface porosity for superior adhesion and durability. This piston has a bore size of 53.93mm and a single ring design.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-grade-a-53.93mm-single-ring-piston-1593-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-grade-a-53.93mm-single-ring-piston-1593-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminum alloys with 12%, 18%, or 21% silicon. Piston blanks are created using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic implant with hot water quench. Machining is done using the latest CNC machines and diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Pistons are coated with Molybdenum Bisulphite for break-in and friction reduction. A new Phosphate Coating offers increased hardness and surface porosity for superior adhesion and durability. This piston has a bore size of 53.93mm and a single ring design.","descriptionMarkdown":"### Vertex Grade A 53.93mm Single Ring Piston\n\nThe Vertex Grade A single ring piston is precision engineered to meet the demanding requirements of high performance engines. Manufactured using advanced low expansion silicon charged aluminium alloys, these pistons offer exceptional structural integrity and heat resistance. Whether you are performing a routine rebuild or a top end refresh, this piston provides the durability and reliability needed to maintain peak engine power.\n\n### Advanced Manufacturing and Material Quality\n\nVertex utilizes either gravity cast or hydraulic forging processes to create the piston blank. The material structure is further refined through a sophisticated heat treatment process, utilizing automated technology and hot water quenching to ensure superior metal strength. Every piston is machined using state of the art CNC equipment and diamond tipped tools, allowing for precise surface finishes tailored to specific performance applications.\n\n### Enhanced Coating Technology\n\nTo reduce internal friction and assist during the critical engine break in phase, these pistons feature a specialized Molybdenum Bisulphite black coating. This is further improved by an integrated Phosphate coating, inspired by Formula One engine technology. This combination increases surface hardness and provides the ideal porosity for superior adhesion, effectively doubling the durability of the protective coating.\n\n### Key Features\n\n \n- Precision Engineering: Designed with a 53.93mm diameter for a high quality, consistent fit.\n \n- Advanced Alloy Composition: Constructed from Low-Ex silicon charged aluminium alloys for reduced thermal expansion.\n \n- Reduced Friction: Molybdenum Bisulphite coating minimizes drag for smoother engine operation.\n \n- Extended Durability: Phosphate coating provides enhanced hardness and superior longevity.\n \n- Quality Assured: Every piston undergoes rigorous manual and automated quality control testing.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-125-2005-2021-grade-a-5393mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/0a8eb7b5379b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/0a8eb7b5379b: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."]}}