{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"edba6ee90302","name":"YAMAHA YZ 125 2022 GRADE D 53.97mm SINGLE RING PISTON","sku":"V.4570D","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":170.02,"formatted":"£170.02"},"summary":"Vertex pistons are manufactured using Low-Ex silicon aluminum alloys and either gravity cast or forged blanks. A heat treatment process is completed in an automatic HT implant with solubilization by quench in hot water. The machining process uses CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes 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, developed following Formula One engine advancements, offers increased hardness, light surface porosity, and superior adhesion qualities of the Molybdenum Coating, doubling the coating durability. This piston features a single ring and has a bore of 53.97mm.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-85-2019-2020-grade-b-47.46mm-10606-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-85-2019-2020-grade-b-47.46mm-10606-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex silicon aluminum alloys and either gravity cast or forged blanks. A heat treatment process is completed in an automatic HT implant with solubilization by quench in hot water. The machining process uses CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes 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, developed following Formula One engine advancements, offers increased hardness, light surface porosity, and superior adhesion qualities of the Molybdenum Coating, doubling the coating durability. This piston features a single ring and has a bore of 53.97mm.","descriptionMarkdown":"### Vertex Grade D Single Ring Piston 53.97mm\n\nThe Vertex Grade D Single Ring Piston is engineered for high performance and durability, utilizing advanced manufacturing techniques to meet the demands of competitive riding. Designed as a precision replacement component, this 53.97mm piston ensures optimal engine efficiency and reliability.\n\nVertex manufactures these pistons using high-grade Low-Ex silicon-charged aluminum alloys. This material choice, combined with a specialized heat treatment process involving automatic solubilization and hot water quenching, results in a refined material structure that is both strong and lightweight. Every piston is machined using state-of-the-art CNC technology and diamond tooling to ensure exact tolerances and superior surface finishes.\n\n**Key Features:**\n\n \n- Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to reduce friction and facilitate a smoother engine break-in process.\n \n- Phosphate Coating: Includes an all-over phosphate coating that increases surface hardness and provides superior adhesion for the Molybdenum layer, significantly extending the durability of the piston finish.\n \n- Precision Engineering: Manufactured using either gravity cast or hydraulic forging processes for maximum structural integrity.\n \n- Quality Assured: Each unit undergoes rigorous manual and automatic quality control inspections to ensure consistent performance standards.\n \n- Optimized Performance: Designed to maintain high-level function even under intense racing conditions.\n\nBy integrating cutting-edge metallurgical processes and high-tech machining, Vertex pistons offer an ideal solution for riders looking to restore power and performance to their engine. This single ring design is optimized for reduced drag, promoting better throttle response and reliable power delivery.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-125-2022-grade-d-5397mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/edba6ee90302:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/edba6ee90302:1"}},"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."]}}