{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"48bf1e191984","name":"KTM SX / EXC 125 1994-1997 GRADE B 54.20mm","sku":"V.2361B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":178.12,"formatted":"£178.12"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon, depending on the application. Pistons are produced via gravity casting or hydraulic forging, with material structure refined through advanced heat treatment in an automatic HT implant, including solubilization by quenching in hot water. Machining is performed using the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction, and a new Phosphate Coating for increased hardness, light surface porosity, and enhanced Molybdenum Coating adhesion and durability. This piston is 54.20mm.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-exc-125-1994-1997-grade-b-54.20mm-4679-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-exc-125-1994-1997-grade-b-54.20mm-4679-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon, depending on the application. Pistons are produced via gravity casting or hydraulic forging, with material structure refined through advanced heat treatment in an automatic HT implant, including solubilization by quenching in hot water. Machining is performed using the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction, and a new Phosphate Coating for increased hardness, light surface porosity, and enhanced Molybdenum Coating adhesion and durability. This piston is 54.20mm.","descriptionMarkdown":"### Vertex High Performance 54.20mm Piston (Grade B)\n\nEnhance the performance and reliability of your engine with this precision-engineered Vertex piston. Designed for riders who demand top-tier quality and durability, Vertex pistons are manufactured using advanced aluminium alloys and cutting-edge production techniques to ensure peak performance under high-stress conditions.\n\nVertex utilises specialised Low-Ex (low expansion) Silicon-charged aluminium alloys, selected for their superior strength and stability. These pistons undergo a rigorous gravity cast or hydraulic forging process, followed by a state-of-the-art heat treatment in an automatic HT implant to refine the material structure for maximum longevity.\n\n### Key Features\n\n \n- Precision Engineering: Machined using the latest CNC technology and diamond-tipped tools to ensure exact tolerances and specific surface finishes.\n \n- Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to reduce friction and assist during the critical piston break-in period.\n \n- Enhanced Durability: Incorporates an all-over Phosphate coating, inspired by Formula One technology, which increases surface hardness and improves the adhesion of the Molybdenum coating for extended service life.\n \n- Quality Assurance: Each piston undergoes strict manual and automatic quality control inspections to meet the highest industry standards.\n \n- Specifications: 54.20mm diameter, Grade B sizing.\n\nWhether you are performing a routine rebuild or looking to restore factory-level performance, this Vertex piston provides the reliable combustion chamber seal and thermal management required for high-performance riding.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-exc-125-1994-1997-grade-b-5420mm","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/48bf1e191984:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/48bf1e191984:1"}},"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."]}}