{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"67a67848d977","name":"SUZUKI RM 250 2003-2012 GRADE A 66.34mm TWIN RING PISTON","sku":"V.2854A","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 aluminum alloys with 12%, 18%, or 21% silicon, depending on the application. Pistons are made using gravity cast or hydraulic forging processes, followed by a heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is done using CNC machines and diamond tools, achieving specific surface finishes. All Vertex pistons undergo manual and automatic quality control. The pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. Vertex also offers a new Phosphate Coating for increased hardness and superior adhesion of the Molybdenum Coating, doubling coating durability. This piston has a bore size of 66.34mm and features twin rings.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2003-2012-grade-a-66.34mm-twin-ring-piston-6342-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/suzuki-rm-250-2003-2012-grade-a-66.34mm-twin-ring-piston-6342-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminum alloys with 12%, 18%, or 21% silicon, depending on the application. Pistons are made using gravity cast or hydraulic forging processes, followed by a heat treatment in an automatic HT implant with solubilization by quench in hot water. Machining is done using CNC machines and diamond tools, achieving specific surface finishes. All Vertex pistons undergo manual and automatic quality control. The pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. Vertex also offers a new Phosphate Coating for increased hardness and superior adhesion of the Molybdenum Coating, doubling coating durability. This piston has a bore size of 66.34mm and features twin rings.","descriptionMarkdown":"### Premium Vertex Grade A 66.34mm Twin Ring Piston\n\nThe Vertex Grade A 66.34mm Twin Ring Piston is engineered for high-performance engines, delivering exceptional durability and precision. Manufactured by Vertex using advanced Low-Ex aluminium alloys, these pistons incorporate 12%, 18%, or 21% silicon content depending on the specific application to ensure superior thermal expansion control and structural integrity.\n\nVertex utilizes either a gravity cast or hydraulic forging process to create high-quality piston blanks, which are further refined through an automated heat treatment process for maximum strength. The final machining is performed on state-of-the-art CNC equipment with diamond tooling, ensuring precise surface finishes tailored to peak engine performance.\n\n### Key Features and Benefits\n\n \n- Advanced Alloy Construction: Crafted from exotic Low-Ex silicon-charged aluminium alloys to minimize expansion and maximize longevity.\n \n- Dual Coating Technology: Features a Molybdenum Bisulphite black coating to assist with the initial break-in period and significantly reduce internal friction.\n \n- Phosphate Coating: Incorporates a Formula One inspired phosphate coating that increases surface hardness and provides superior adhesion for the Molybdenum layer, effectively doubling the coating durability.\n \n- Precision Machined: Manufactured using high-tech CNC software and diamond-tipped tools for exact tolerances and superior surface quality.\n \n- Rigorous Quality Control: Each piston undergoes strict manual and automatic inspection processes to ensure the highest manufacturing standards.\n\nDesigned for riders and mechanics who demand reliability, this Vertex twin-ring piston provides the essential components for a high-quality engine rebuild, ensuring consistent power delivery and extended component life under demanding conditions.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/suzuki-rm-250-2003-2012-grade-a-6634mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/67a67848d977:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/67a67848d977:1"}},"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."]}}