{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"2665ca9144ef","name":"KTM SX / GS 250 1996-1999 GRADE B 67.45mm TWIN RING PISTON","sku":"V.2459B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":226.72,"formatted":"£226.72"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon depending on the application. Pistons are made using gravity cast or hydraulic forging processes, with material structure refined through advanced heat treatment in an automatic HT implant with hot water solubilization. This process uses cutting-edge technology for aluminium alloys. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes based on the piston's final application. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating to aid break-in and reduce friction. Vertex has also introduced a new Phosphate Coating, which offers increased hardness and surface porosity for superior Molybdenum Coating adhesion and double the coating durability. This piston is Grade B and measures 67.45mm with twin rings.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-gs-250-1996-1999-grade-b-67.45mm-twin-ring-piston-1738-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-gs-250-1996-1999-grade-b-67.45mm-twin-ring-piston-1738-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon depending on the application. Pistons are made using gravity cast or hydraulic forging processes, with material structure refined through advanced heat treatment in an automatic HT implant with hot water solubilization. This process uses cutting-edge technology for aluminium alloys. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes based on the piston's final application. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating to aid break-in and reduce friction. Vertex has also introduced a new Phosphate Coating, which offers increased hardness and surface porosity for superior Molybdenum Coating adhesion and double the coating durability. This piston is Grade B and measures 67.45mm with twin rings.","descriptionMarkdown":"### Vertex Grade B 67.45mm Twin Ring Piston\n\nThe Vertex Grade B 67.45mm Twin Ring Piston is engineered to meet the demanding requirements of high-performance engines. Vertex utilizes specialized Low-Ex aluminium alloys, precisely charged with silicon to ensure optimal thermal expansion characteristics and long-term durability. Each piston is produced through either a gravity cast or hydraulic forging process, refined by an advanced automated heat treatment system to maximize material integrity.\n\nVertex employs state-of-the-art CNC machining and diamond tooling to achieve precise tolerances and surface finishes tailored to specific engine applications. To ensure maximum reliability and performance, every piston undergoes rigorous quality control protocols throughout the manufacturing process.\n\n### Key Features\n\n \n- Advanced Alloy Composition: Manufactured from low expansion (Low-Ex) aluminium alloys for superior heat resistance and structural strength.\n \n- Precision Engineering: Machined using high-tech CNC equipment and diamond tools to ensure an exact 67.45mm fitment.\n \n- Dual Coating Technology: Features a Molybdenum Bisulphite black coating to reduce friction and assist with the break-in process.\n \n- Phosphate Coating: Includes an all-over phosphate layer that provides increased surface hardness and promotes superior adhesion of the Molybdenum coating, effectively doubling its durability.\n \n- Twin Ring Design: Optimized for efficient sealing and compression performance under racing conditions.\n\nBuilt to the same high standards seen in Formula One engine components, this Vertex piston is a premium choice for riders seeking reliable power and engine longevity.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-gs-250-1996-1999-grade-b-6745mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/2665ca9144ef:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/2665ca9144ef: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."]}}