{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8085c80c7538","name":"KAWASAKI KX 250 1998-2001 GRADE C 66.37mm TWIN RING PISTON","sku":"V.2521C","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":218.62,"formatted":"£218.62"},"summary":"Twin ring piston, 66.37mm bore size, Grade C. Manufactured using Low-Ex Silicon aluminium alloy. Features a special Molybdenum Bisulphite black coating to aid break-in and reduce friction. Includes an all-over Phosphate Coating for increased hardness, light surface porosity, and superior adhesion, extending coating durability. Precision machined using CNC machines and diamond tools. Undergoes rigorous manual and automatic quality control.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kx-250-1998-2001-grade-a-66.35mm-1684-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/kawasaki-kx-250-1998-2001-grade-a-66.35mm-1684-p.jpg"],"description":"Twin ring piston, 66.37mm bore size, Grade C. Manufactured using Low-Ex Silicon aluminium alloy. Features a special Molybdenum Bisulphite black coating to aid break-in and reduce friction. Includes an all-over Phosphate Coating for increased hardness, light surface porosity, and superior adhesion, extending coating durability. Precision machined using CNC machines and diamond tools. Undergoes rigorous manual and automatic quality control.","descriptionMarkdown":"### Premium Vertex Twin Ring Piston for High-Performance Engines\n\nThe Vertex Grade C Twin Ring Piston is engineered for riders who demand precision, durability, and peak engine performance. Crafted using advanced metallurgy and state-of-the-art manufacturing techniques, this piston provides a reliable solution for engine rebuilds, ensuring your machine maintains its power and efficiency.\n\n### Advanced Material Technology\n\nVertex pistons are manufactured from high-quality Low-Ex aluminium alloys, specifically formulated with silicon content to minimize thermal expansion. This ensures a consistent fit and optimal clearance within the cylinder throughout varying operating temperatures. The structural integrity of the piston is further enhanced by a sophisticated heat treatment process, which refines the material for maximum strength and resilience under high-stress conditions.\n\n### Precision Machining and Quality Control\n\nEach piston is machined using high-precision CNC technology and diamond-tipped tooling to achieve the exact surface finish required for superior performance. Following production, every unit undergoes rigorous manual and automatic quality control inspections to ensure it meets the highest industry standards for reliability.\n\n### Enhanced Durability Features\n\n \n- Molybdenum Bisulphite Coating: A specialized black coating is applied to the piston to reduce friction and facilitate a smoother break-in process.\n \n- Phosphate Coating Technology: Inspired by Formula One engine developments, the integrated phosphate coating provides increased surface hardness and porosity. This creates a superior base for the Molybdenum coating, effectively doubling its durability and extending the lifespan of the piston.\n \n- Twin Ring Design: Engineered to provide an excellent seal and consistent compression, contributing to stable power delivery and reduced blow-by.\n\n### Key Benefits\n\n \n- Optimized for reduced friction and increased wear resistance.\n \n- Engineered to withstand high-performance demands.\n \n- Advanced alloy composition prevents seizing and ensures dimensional stability.\n \n- Designed for seamless integration during engine maintenance.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/kawasaki-kx-250-1998-2001-grade-c-6637mm-twin-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8085c80c7538:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8085c80c7538:1"}},"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."]}}