{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"acbdb48e889d","name":"SUZUKI RM 250 1999 GRADE B 66.35mm SINGLE RING PISTON","sku":"V.2592B","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 aluminium alloys with 12%, 18% or 21% silicon content. The manufacturing process includes gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Each piston undergoes rigorous 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, developed following Formula One engine advancements, offers increased hardness, light surface porosity, and superior adhesion for extended coating durability. This is a single ring piston with a 66.35mm bore.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-1999-grade-b-66.35mm-single-ring-piston-3808-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-1999-grade-b-66.35mm-single-ring-piston-3808-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content. The manufacturing process includes gravity casting or hydraulic forging, followed by heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines and software with diamond tools, achieving specific surface finishes. Each piston undergoes rigorous 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, developed following Formula One engine advancements, offers increased hardness, light surface porosity, and superior adhesion for extended coating durability. This is a single ring piston with a 66.35mm bore.","descriptionMarkdown":"### High Performance Vertex 66.35mm Grade B Single Ring Piston\n\nThe Vertex 66.35mm Grade B Single Ring Piston is engineered for precision and durability, making it an ideal choice for riders looking to restore or maintain optimal engine performance. Crafted using advanced metallurgy and manufacturing techniques, this piston ensures a reliable fit and long-term resilience under demanding riding conditions.\n\n### Advanced Manufacturing Technology\n\nVertex utilizes high-quality Low-Ex (low expansion) aluminum alloys charged with varying levels of silicon to suit specific engine requirements. Through a combination of gravity casting and hydraulic forging, the structural integrity of the alloy is refined. This is further enhanced by a sophisticated heat treatment process in an automated implant, providing the piston with superior strength and thermal stability.\n\n### Precision Engineering and Coatings\n\nEach piston is machined using state-of-the-art CNC technology and diamond-tipped tooling to achieve the exact surface finish required for high-performance applications. To maximize longevity and reduce friction, Vertex employs a multi-stage coating process:\n\n \n- Molybdenum Bisulphite Coating: A specialized black coating that facilitates a smooth break-in period and minimizes internal friction during engine operation.\n \n- Phosphate Coating: Borrowing from Formula One engineering, this layer increases surface hardness and provides light surface porosity. This creates superior adhesion for the Molybdenum coating, effectively doubling its durability.\n\n### Quality Assurance\n\nBefore leaving the factory, every Vertex piston undergoes a rigorous quality control process, involving both manual inspections and automated testing to ensure the highest standards of performance and reliability are met.\n\n### Key Features\n\n \n- Grade B specification for precise sizing\n \n- 66.35mm diameter\n \n- Durable single-ring configuration\n \n- Advanced Low-Ex aluminum alloy construction\n \n- Enhanced friction-reducing Molybdenum and Phosphate coatings\n \n- High-tech heat-treated for improved structural longevity","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/suzuki-rm-250-1999-grade-b-6635mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/acbdb48e889d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/acbdb48e889d: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."]}}