{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"530fb97fa1b1","name":"KTM SX 250 2005 GRADE B 66.35mm TWIN RING PISTON","sku":"V.3121B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex pistons are manufactured using Low-Ex Silicon aluminium alloys (12%, 18% or 21% depending on application). They are made using a gravity cast or hydraulic forging process, with material structure refined by a hi-tech Heat Treatment process. The machining is completed using CNC machines and diamond tools, allowing for specific surface finishes. Each Vertex piston undergoes manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness and light surface porosity for superior adhesion and durability. This piston has a bore of 66.35mm and features twin rings.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-250-2005-grade-b-66.35mm-twin-ring-piston-7126-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/ktm-sx-250-2005-grade-b-66.35mm-twin-ring-piston-7126-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex Silicon aluminium alloys (12%, 18% or 21% depending on application). They are made using a gravity cast or hydraulic forging process, with material structure refined by a hi-tech Heat Treatment process. The machining is completed using CNC machines and diamond tools, allowing for specific surface finishes. Each Vertex piston undergoes manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating is also available, offering increased hardness and light surface porosity for superior adhesion and durability. This piston has a bore of 66.35mm and features twin rings.","descriptionMarkdown":"### Vertex 66.35mm Grade B Twin Ring Piston\n\nMaintain peak engine performance with the Vertex 66.35mm Grade B Twin Ring Piston. Engineered for reliability and precision, this piston utilizes advanced manufacturing techniques to ensure durability and optimal power delivery under demanding conditions.\n\nVertex pistons are crafted from high-quality, low-expansion silicon-charged aluminum alloys. This material choice, combined with precise heat treatment processes, ensures structural integrity and consistent performance throughout the life of the component. The machining is performed on state-of-the-art CNC equipment, utilizing diamond tooling to achieve exact surface finishes tailored to the requirements of your engine.\n\n### Key Features\n\n \n- Advanced Alloy Construction: Manufactured using Low-Ex silicon-charged aluminum for superior thermal stability and strength.\n \n- Precision Engineering: CNC machined with high-tech diamond tools to ensure exact dimensions and optimal sealing.\n \n- Twin Ring Design: Engineered to provide an effective seal and heat transfer path for consistent power output.\n \n- Enhanced Surface Coatings: Features a Molybdenum Bisulphite coating to assist in the break-in process and reduce internal friction.\n \n- Phosphate Coating Technology: Integrated all-over phosphate coating provides increased surface hardness and superior adhesion for the Molybdenum layer, significantly extending the durability of the piston.\n \n- Strict Quality Control: Every piston undergoes rigorous manual and automatic inspection to meet high manufacturing standards.\n\nThis Grade B piston is designed to offer a precise fit, ensuring that your engine maintains the compression and performance characteristics required for competitive riding and reliable operation.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/ktm-sx-250-2005-grade-b-6635mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/530fb97fa1b1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/530fb97fa1b1:1"}},"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."]}}