{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f9a2ff55021b","name":"SUZUKI RM 250 1998 GRADE B 66.35mm TWIN RING PISTON","sku":"V.2540B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex pistons are manufactured using Low-Ex silicon aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are made using gravity casting or hydraulic forging, followed by heat treatment for material structure refinement. Machining is performed with the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special black Molybdenum Bisulphite coating to aid break-in and reduce friction. A newer Phosphate Coating is also available, offering increased hardness, surface porosity, and superior adhesion of the Molybdenum Coating for extended durability. This piston is 66.35mm with twin rings and is a Grade B piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-1998-grade-b-66.35mm-twin-ring-piston-3804-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-1998-grade-b-66.35mm-twin-ring-piston-3804-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex silicon aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are made using gravity casting or hydraulic forging, followed by heat treatment for material structure refinement. Machining is performed with the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special black Molybdenum Bisulphite coating to aid break-in and reduce friction. A newer Phosphate Coating is also available, offering increased hardness, surface porosity, and superior adhesion of the Molybdenum Coating for extended durability. This piston is 66.35mm with twin rings and is a Grade B piston.","descriptionMarkdown":"### Vertex Grade B 66.35mm Twin Ring Piston\n\nThe Vertex Grade B Twin Ring Piston is engineered for high-performance off-road engine applications. Manufactured using premium Low-Expansion (Low-Ex) silicon-charged aluminium alloys, these pistons offer superior durability and thermal stability. Whether you are performing a top-end rebuild or seeking a reliable replacement, this piston is designed to restore engine power and efficiency.\n\nVertex utilizes advanced manufacturing techniques, including gravity casting and hydraulic forging, followed by a precision heat treatment process to refine the material structure for maximum strength. Each component is machined on state-of-the-art CNC equipment with diamond tooling to achieve precise surface finishes tailored for specific engine performance.\n\n### Key Features\n\n \n- Precision Engineering: Manufactured from advanced aluminium alloys with 12%, 18%, or 21% silicon content depending on application requirements.\n \n- Advanced Coatings: Features a Molybdenum Bisulphite black coating to assist with the initial break-in period and reduce internal friction.\n \n- Enhanced Durability: Includes a high-tech Phosphate Coating, which provides increased hardness and superior adhesion for the Molybdenum layer, extending the lifespan of the coating.\n \n- Quality Assurance: Every piston undergoes rigorous manual and automatic quality control checks to ensure consistent performance and reliability.\n \n- Optimized Design: The twin ring configuration provides a balanced compromise between sealing performance and reduced friction, ideal for competitive riding.\n\nBy leveraging technology inspired by Formula One developments, the Vertex piston line delivers a robust solution for maintaining peak engine output. This piston provides the exact tolerances and surface characteristics required to keep your engine running smoothly under demanding conditions.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/suzuki-rm-250-1998-grade-b-6635mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f9a2ff55021b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f9a2ff55021b: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."]}}