{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d4fd5e991471","name":"SUZUKI RM 250 2003-2012 GRADE B 66.35mm SINGLE RING RACE PISTON","sku":"V.2855B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12% 18% or 21% silicon. They are produced using gravity cast or hydraulic forging processes. The material structure is refined using a hi-tech heat treatment process with solubilization by quench in hot water. Machining is completed using CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and reduced friction. A new Phosphate Coating offers increased hardness and porosity for superior Molybdenum Coating adhesion and durability. This is a single ring race piston with a 66.35mm bore size.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2003-2012-grade-b-66.35mm-single-ring-race-piston-3814-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2003-2012-grade-b-66.35mm-single-ring-race-piston-3814-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12% 18% or 21% silicon. They are produced using gravity cast or hydraulic forging processes. The material structure is refined using a hi-tech heat treatment process with solubilization by quench in hot water. Machining is completed using CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and reduced friction. A new Phosphate Coating offers increased hardness and porosity for superior Molybdenum Coating adhesion and durability. This is a single ring race piston with a 66.35mm bore size.","descriptionMarkdown":"### Vertex Race Piston - Grade B - 66.35mm\n\nUpgrade your engine performance with the Vertex Grade B race piston. Precision-engineered for high-performance applications, this single-ring piston is designed to deliver reliability, power, and optimal thermal efficiency under demanding riding conditions.\n\nVertex utilizes advanced Low-Ex silicon-charged aluminium alloys to ensure minimal thermal expansion and maximum structural integrity. Whether through gravity casting or hydraulic forging, these pistons undergo a sophisticated heat treatment process that refines the material structure for superior strength and longevity.\n\n**Key Features and Benefits:**\n\n- Precision Manufacturing: Machined using state-of-the-art CNC technology and diamond tools to achieve exacting tolerances and surface finishes.\n\n- Advanced Coatings: Features a Molybdenum Bisulphite black coating to assist with the break-in process and significantly reduce friction during cylinder operation.\n\n- Phosphate Coating Technology: Inspired by Formula One engine developments, the all-over phosphate coating provides increased surface hardness and light porosity. This enhances the adhesion of the Molybdenum coating, effectively doubling its durability.\n\n- Quality Assurance: Every piston undergoes rigorous manual and automatic quality control inspections to ensure industry-leading standards.\n\n- Performance Optimized: The 66.35mm diameter and single-ring configuration are specifically engineered to provide a lightweight, high-performance solution for competitive engines.\n\nVertex pistons represent the pinnacle of aftermarket engineering, providing a race-proven component that maintains consistent performance throughout the entire service life of the part.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/suzuki-rm-250-2003-2012-grade-b-6635mm-single-ring-race-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d4fd5e991471:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d4fd5e991471:1"}},"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."]}}