{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"927ae622c539","name":"SUZUKI RM 250 2000-2002 GRADE B 66.35mm TWIN RING PISTON","sku":"V.2646B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging and then heat treated. Machining is done with the latest CNC machines and diamond tools, achieving specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with Molybdenum Bisulphite for break-in and friction reduction. A newer Phosphate Coating offers increased hardness, surface porosity, and enhanced adhesion and durability of the Molybdenum Coating. This is a Grade B 66.35mm twin ring piston.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2000-2002-grade-b-66.35mm-twin-ring-piston-3811-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2000-2002-grade-b-66.35mm-twin-ring-piston-3811-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging and then heat treated. Machining is done with the latest CNC machines and diamond tools, achieving specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with Molybdenum Bisulphite for break-in and friction reduction. A newer Phosphate Coating offers increased hardness, surface porosity, and enhanced adhesion and durability of the Molybdenum Coating. This is a Grade B 66.35mm twin ring piston.","descriptionMarkdown":"### Vertex 66.35mm Twin Ring Piston - Grade B\n\nThe Vertex Grade B Twin Ring Piston is engineered for high-performance off-road engines, offering superior reliability and durability. Built to meet the rigorous demands of competitive racing, this piston is manufactured using advanced Low-Ex aluminium alloys, ensuring optimal thermal expansion control and structural integrity under high temperatures.\n\nVertex utilizes a precision-focused manufacturing process, combining gravity casting or hydraulic forging with automated heat treatment. This results in a refined material structure that is both lightweight and incredibly robust. Every piston is machined to exact tolerances using state-of-the-art CNC technology and diamond-tipped tooling to ensure a perfect surface finish tailored for maximum engine efficiency.\n\n### Key Features\n\n \n- Advanced Alloy Composition: Constructed from Low-Ex (low expansion) Silicon-charged aluminium for consistent performance across high-load cycles.\n \n- Dual-Layer Coating System: Features a specialized Molybdenum Bisulphite black coating to reduce friction and assist with smooth engine break-in.\n \n- Phosphate Coating: Incorporates a secondary phosphate coating for enhanced surface hardness and superior adhesion of the Molybdenum layer, effectively doubling its durability.\n \n- Precision Engineering: Manufactured with advanced CNC software and diamond tools for a high-quality surface finish and exact dimensional accuracy.\n \n- Rigorous Quality Control: Each piston undergoes stringent manual and automatic inspections to maintain the highest manufacturing standards.\n \n- Twin Ring Design: Designed for optimal ring seal and consistent compression, contributing to reliable power output throughout the engine lifespan.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/suzuki-rm-250-2000-2002-grade-b-6635mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/927ae622c539:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/927ae622c539:1"}},"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."]}}